question
stringlengths 12
106
| answer
stringlengths 39
324
| source
stringlengths 24
198
|
---|---|---|
What can break down hydrogen peroxide? | Fortunately we have an enzyme in the cells in our bodies where hydrogen peroxide is produced called catalase. This enzyme catalyses the breakdown of hydrogen peroxide into harmless water and oxygen. | http://resources.schoolscience.co.uk/JohnsonMatthey/page39.htm |
What was Susan B Anthony famous for? | Born on February 15, 1820, Susan B. Anthony was raised in a Quaker household and went on to work as a teacher before becoming a leading figure in the abolitionist and women's voting rights movement. She partnered with Elizabeth Cady Stanton and would eventually lead the National American Woman Suffrage Association. | http://www.biography.com/people/susan-b-anthony-194905 |
Why were dalmatians used on fire trucks? | Dalmatians are perhaps best known for their role as fire-fighting apparatus escorts and firehouse mascots. Since Dalmatians and horses are very compatible, the dogs were easily trained to run in front of the carriages to help clear a path and quickly guide the horses and firefighters to the fires. | http://en.m.wikipedia.org/wiki/Dalmatian_(dog) |
What does the Mohs scale measure? | A scale used to measure the relative hardness of a mineral by its resistance to scratching. From softest to hardest, the ten minerals of the Mohs scale are talc (measuring 1 on the scale), gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and diamond (measuring 10 on the scale). | http://dictionary.reference.com/browse/mohs+scale |
Which US state first declared Christmas a holiday? | In 1836, Alabama was the first state in the United States to declare Christmas a legal holiday. 2. Christmas wasn't declared an official holiday in the United States until June 26, 1870. | http://www.al.com/news/mobile/index.ssf/2014/12/12_christmas_facts_find_out_ho.html |
Who was the original Joker? | The Joker has been Batman's adversary in live-action and animated incarnations, including the 1960s Batman television series (played by Cesar Romero) and in film by Jack Nicholson in 1989's Batman and Heath Ledger in 2008's The Dark Knight (earning Ledger a posthumous Academy Award for Best Supporting Actor). | http://en.m.wikipedia.org/wiki/Joker_(comics) |
What states do not allow self service gas? | New Jersey and Oregon are the only U.S. states that currently ban self-service gas stations. The purpose of these laws was to protect consumers and gas station owners from costly, and possibly deadly, accidents. | http://www.infoplease.com/askeds/bans-gas-pumping.html |
What presidents are still alive? | The current living presidents (left to right): George H. W. Bush, Barack Obama, George W. Bush, Bill Clinton, and Jimmy Carter. This is the list of all of the living people who have served as President of the United States at each moment in U.S. history. | http://en.m.wikipedia.org/wiki/Living_Presidents_of_the_United_States |
What does the PT mean in PT cruiser? | The PT Cruiser was designed by Bryan Nesbitt, who later also styled the Chevrolet HHR. The name "PT Cruiser" includes the initialism PT, standing for "Personal Transport" and designating the car's platform as well as production code. | http://en.m.wikipedia.org/wiki/Chrysler_PT_Cruiser |
How much water is inside the human body? | By one year of age, that amount drops to about 65%. In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of their bodies made of water. | http://water.usgs.gov/edu/propertyyou.html |
Why do cats rub their heads? | Cats have scent glands along the tail, on each side of their head, on their lips, base of their tail, chin, near their sex organs, and between their front paws. They use these glands to scent mark their territory. When the cat rubs you, he is marking you with his scent, claiming you as "his." | https://user.xmission.com/~emailbox/whycat.htm |
How many nations are in the United Kingdom? | The official name of the UK is the "United Kingdom of Great Britain and Northern Ireland". The name refers to the union of what were once four separate nations: England, Scotland, Wales and Ireland (though most of Ireland is now independent). | http://www.woodlands-junior.kent.sch.uk/customs/questions/britain/uk.htm |
Can penguins be found in the North Pole? | Polar bears roam within the Arctic Circle—including the North Pole. Penguins are found only in the Southern Hemisphere, mostly near Earth's South Pole, in Antarctica. | http://news.nationalgeographic.com/news/2004/11/1108_041108_north_pole_2.html |
How big is VY Canis Majoris compared to Earth? | VY Canis Majoris has a diameter of 2,800,000,000 kms. Our Sun, on the other hand is just a puny 1,391,000 km in diameter. It would take an airplane 1,100 years to circle VY Canis Majoris once. Placed in our Solar System, its surface would extend out past the orbit of Saturn. | http://www.mbandf.com/parallel-world/our-sun-is-extremely-large-our-sun-is-fairly-small |
Are there more chickens than people in the world? | In fact, there are approximately 19 billion chickens in the world. That's almost three per person. | http://news-by-design.com/there-are-more-chickens-than-people-in-the-world/ |
Why is a peach fuzzy? | Experts agree that the fuzz helps the peach defend itself from various threats. Some feel the fuzz was developed to give the fruit more resistance to insects and diseases. Another theory is that the fuzz protects peaches from sunburn and potential water loss. | https://www.farmboy.ca/index.php?action=recipes.faqtrivia |
Who was the first person to go to space? | First man in space. On 12 April 1961 Russian cosmonaut Yuri Gagarin became the first human in space when he orbited the Earth once during a 108 minute flight. In 1960 Gagarin, a fighter pilot, was shortlisted for the Vostok 1 programme, which built on the success of Sputnik 1 just three years earlier. | http://www.bbc.co.uk/science/space/solarsystem/astronauts/yuri_gagarin |
How many people were in the band Nirvana? | Nirvana started in Aberdeen, Washington in 1987 when singer Kurt Cobain and the bassist Krist Novoselic met and decided to form a band. The band had 5 different drummers until they found Dave Grohl. They released their first studio album, Bleach, in 1989, with Chad Channing playing drums. | http://simple.wikipedia.org/wiki/Nirvana_(band) |
What were the wisdom teeth used for? | Anthropologists believe wisdom teeth, or the third set of molars, were the evolutionary answer to our ancestor's early diet of coarse, rough food – like leaves, roots, nuts and meats – which required more chewing power and resulted in excessive wear of the teeth. | http://scienceline.org/2007/02/ask-cooper-wisdomteeth/ |
How much water is a human body made of? | Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%. | http://water.usgs.gov/edu/propertyyou.html |
Where are avocados originated from? | The avocado (Persea americana) is a tree native to Mexico and Central America, classified in the flowering plant family Lauraceae along with cinnamon, camphor and bay laurel. Avocado or alligator pear also refers to the fruit, botanically a large berry that contains a single seed. | http://en.m.wikipedia.org/wiki/Avocado |
Who is the most filmed author? | More than 410 feature-length film and TV versions of William Shakespeare's plays have been produced, making Shakespeare the most filmed author ever in any language. Some are faithful to the original story and text, while others are adaptations that use only the plots rather than his dialogue. | http://en.wikipedia.org/wiki/List_of_William_Shakespeare_screen_adaptations |
How many bones are in a dog's body? | Bones, muscles, ligaments and tendons compose the bulk of an animal's body mass. Allowing for variations in tail length, there is an average of 319 bones in the dog skeleton. Bones are complex, rigid, living organs that have their own supply of blood vessels and nerves. | http://www.peteducation.com/article.cfm?c=2+2084&aid=327 |
What party did madison belong to? | Breaking with Hamilton and what became the Federalist Party in 1791, Madison and Thomas Jefferson organized what they called the Republican Party (later called by historians the Democratic-Republican Party). | http://en.wikipedia.org/wiki/James_Madison |
Can it snow when it's below freezing? | It rarely snows when the temperature drops below zero degrees Fahrenheit (-18 degrees Celsius). But snow does sometimes fall even when it's that cold. Snow can fall even in the coldest place on Earth, Antarctica, at temperatures well below zero. It turns out that moisture is more important than temperature. | http://earthsky.org/earth/now-temperature |
What does the red triangle yield sign mean? | A yield sign is a triangle with a white background and a red border. It means you must let traffic in the intersection or close to it go first. Stop if necessary and go only when the way is clear. A railway crossing sign is X-shaped with a white background and red outline. | http://www.mto.gov.on.ca/english/dandv/driver/handbook/section3.1.0.shtml |
When was Churchill born? | More information about: Winston Churchill. Winston Leonard Spencer Churchill was born on 30 November 1874 at Blenheim Palace in Oxfordshire. His father was the prominent Tory politician, Lord Randolph Churchill. | http://www.bbc.co.uk/history/people/winston_churchill |
What does permanent press mean on a washing machine? | The Permanent Press Cycle uses the normal speed spin and has 45 seconds of cool water sprayed on clothes at the end of the cycle. This lower agitation speed and cool water is supposed to prevent wrinkles in clothing like cotton fabric that is prone to wrinkling. | http://blog.everydayscientist.com/?p=2188 |
Is the North Star the brightest star in the sky? | Polaris (α UMi, α Ursae Minoris, Alpha Ursae Minoris, commonly North Star, Northern Star or Pole Star, also Lodestar, sometimes Guiding star) is the brightest star in the constellation Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star. | http://en.m.wikipedia.org/wiki/Polaris |
What is petrified wood? | Structures such as tree rings and the various tissues are often observed features. Petrified wood is a fossil in which the organic remains have been replaced by minerals in the slow process of being replaced with stone. This petrification process generally results in a Quartz Chalcedony mineralization. | http://en.m.wikipedia.org/wiki/Petrified_wood |
How long is a kangaroo baby when it is born? | The young kangaroo, or joey, is born alive at a very immature stage when it is only about 2 cm long and weighs less than a gram. Immediately after birth it crawls up the mother's body and enters the pouch. The baby attaches its mouth to one of four teats, which then enlarges to hold the young animal in place. | http://www.koalaexpress.com.au/kangaroo%20facts.htm |
What makes a cat purr? | One hypothesis, backed by electromyographic studies, is that cats produce the purring noise by using the vocal folds and/or the muscles of the larynx to alternately dilate and constrict the glottis rapidly, causing air vibrations during inhalation and exhalation. | http://en.m.wikipedia.org/wiki/Purr |
Where did Hail Mary in football come from? | The term became widespread after a December 28, 1975 NFL playoff game between the Dallas Cowboys and the Minnesota Vikings, when Cowboys quarterback Roger Staubach (a Roman Catholic) said about his game-winning touchdown pass to wide receiver Drew Pearson, "I closed my eyes and said a Hail Mary." | http://en.m.wikipedia.org/wiki/Hail_Mary_pass |
How much did the Dutch pay for Manhattan? | According to the document by Pieter Janszoon Schagen our People (ons Volck), Peter Minuit and Dutch colonists acquired Manhattan in 1626 from unnamed American Indian people in exchange for trade goods worth 60 guilders, often said to be worth US$24, though (by comparing the price of bread and other goods) it actually ... | http://en.m.wikipedia.org/wiki/Manhattan |
When was oil first discovered in Saudi Arabia? | The story of Saudi Arabian oil goes back to 1933 when King Abdulaziz bin Abdulrahman Al-Saud granted Standard Oil of California (Socal), later renamed Chevron, the right to prospect for oil in the new Kingdom. In 1938, Socal discovered large quantities of oil in the Dammam Dome near the Arabian Gulf. | http://www.saudiembassy.net/about/country-information/energy/oil.aspx |
Who was the first non human to win an Oscar in 1932? | * When, in 1932, Walt Disney won the first of his many Oscars for the creation of Mickey Mouse, the Press tagged Mickey as the "first non-human to win an Oscar." | http://www.thejournal.co.uk/culture/film-tv/lets-thank-oscar-memories-4647903 |
Can the President's veto be overridden? | By threatening a veto, the President can persuade legislators to alter the content of the bill to be more acceptable to the President. Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. | http://www.archives.gov/legislative/resources/education/veto/background.pdf |
When did we get electricity? | In 1882 Edison helped form the Edison Electric Illuminating Company of New York, which brought electric light to parts of Manhattan. But progress was slow. Most Americans still lit their homes with gas light and candles for another fifty years. Only in 1925 did half of all homes in the U.S. have electric power. | http://www.nps.gov/edis/forkids/the-electric-light-system-phonograph-motion-pictures.htm |
What does the daphnia eat? | Daphnia are an extremely important part of aquatic food chains. They eat primary producers such as algae, yeast, and bacteria. Daphnia are the prey of tadpoles, salamanders, newts, aquatic insects, and many types of small fish. | http://betadifferentiatie.files.wordpress.com/2010/09/background-information-on-daphnia.pdf |
What stage of pregnancy can you tell the gender? | Most pregnant women find out their baby's sex (if they choose to know) during their mid-pregnancy ultrasound, usually between 16 and 20 weeks. However, the technician may not be able to tell for sure if she can't get a clear view of the baby's genitals. | http://www.babycenter.com/404_when-and-how-can-i-find-out-my-babys-sex_10366575.bc |
What kind of wood was the Mona Lisa painted on? | Now the mystery of the Mona Lisa is deepening. Earlier this week the Louvre Museum in Paris, where the Renaissance masterpiece by Leonardo da Vinci is housed, warned that "the thin panel of poplar wood, on which this mythical image is painted, is more warped than it was previously." | http://news.nationalgeographic.com/news/2004/04/0430_040430_monalisa.html |
How many teeth does a polar bear have? | A polar bear's head is oblong and relatively small compared to body size. The muzzle is elongated with a "Roman-nosed" (slightly arched) snout. Polar bears have 42 teeth, which they use for catching food and for aggressive behavior. Polar bears use their incisors to shear off pieces of blubber and flesh. | http://seaworld.org/animal-info/animal-infobooks/polar-bears/physical-characteristics/ |
Are peanuts a nut? | Peanut Facts. While “nut” is in their name, peanuts are in fact legumes. Peanuts actually grow underground, as opposed to nuts like walnuts, almonds, etc. that grow on trees (and are sometimes referred to as "tree nuts"). Peanuts, along with beans and peas, belong to the single plant family, Leguminosae. | http://www.peanut-institute.org/peanut-facts/ |
Which is the only country crossed by both the equator and the Tropic of Capricorn? | The Tropic of Capricorn lies at 23.5° South of the equator and runs through Australia, Chile, southern Brazil (Brazil is the only country that passes through both the equator and a tropic), and northern South Africa. | http://www.geocaching.com/seek/cache_details.aspx?guid=0fe220dd-1e9b-455a-b923-bcef132a954a |
What makes the sky blue? | A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight. | http://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html |
How long is a cat's memory span? | A cat's memory is thought to be at least 200 times better than a dog's. But as any cat owner knows, felines are more selective, and remember what they think is useful to them. Short term memory for a dog is about five minutes; cats remember much longer, up to 16 hours. Long term memory is harder to determine. | http://www.canidae.com/blog/2013/06/how-long-is-your-pets-memory-span.html |
How many aluminum cans are in a pound? | So using standard 12 oz. pop/beer cans that are rinsed and dry I find that the consensus is that it takes from 32-35 cans to make a pound. There seems to be no exact number because there are variances by brand. So now we basically know about how many cans one has to gather together to make a pound a make some money. | http://www.yaegerauto.com/webblog.cfm?article=2614 |
Who Burnt Rome? | The great fire of Rome breaks out and destroys much of the city on this day in the year 64. Despite the well-known stories, there is no evidence that the Roman emperor, Nero, either started the fire or played the fiddle while it burned. | http://www.history.com/this-day-in-history/neros-rome-burns |
When was the olympic flag first flown? | The Olympic flag that will be raised at the Opening Ceremony and will fly over the main stadium during the Games dates back to the 1980s. The original five-ringed flag first flew at the Antwerp Games in 1920 and was passed to the mayor of the next host city at the end of the games. | http://mobile.nytimes.com/blogs/london2012/2012/07/27/olympic-flag-is-games-constant-symbol/ |
Who was the first to use the term Iron Curtain? | Iron Curtain speech[edit] Winston Churchill's "Sinews of Peace" address of 5 March 1946, at Westminster College, used the term "iron curtain" in the context of Soviet-dominated Eastern Europe: The Iron Curtain as described by Churchill at Westminster College. | http://en.wikipedia.org/wiki/Iron_Curtain |
Is popcorn maize? | Popcorn, also known as popping corn, is a type of corn (maize, Zea mays var. everta) that expands from the kernel and puffs up when heated. Popcorn is able to pop because, like amaranth grain, sorghum, quinoa, and millet, its kernels have a hard moisture-sealed hull and a dense starchy interior. | http://en.wikipedia.org/wiki/Popcorn |
When was the artificial heart invented? | “In 1963, Mr. Winchell patented an artificial heart that he said was a collaboration with Henry J. Heimlich, inventor of the maneuver for choking victims. Mr. Winchell's device was considered the prototype for the one designed by Robert K. Jarvik that was successfully implanted in a human in 1982”. | http://www.jarvikheart.com/basic.asp?id=72 |
How long is the Hadron Collider tunnel? | The LHC is the world's largest and highest-energy particle accelerator. The collider is contained in a circular tunnel, with a circumference of 27 kilometres (17 mi), at a depth ranging from 50 to 175 metres (164 to 574 ft) underground. | http://en.wikipedia.org/wiki/Large_Hadron_Collider |
How high are the clouds? | Low-level clouds lie below 6,500 feet (2,000 meters). Meteorologists refer to them as stratus clouds. They're often dense, dark, and rainy (or snowy) though they can also be cottony white clumps interspersed with blue sky. The most dramatic types of clouds are cumulus and cumulonimbus, or thunderheads. | http://science.nationalgeographic.com/science/earth/earths-atmosphere/clouds-article/ |
What is the river that separates China and North Korea? | From west to east, the Yalu River, Paektu Mountain, and the Tumen River divide the two countries. Dandong, in the Liaoning Province of China, is the largest city on the border. On the other side of the river is the city of Sinuiju in North Pyongan Province, North Korea. | http://en.m.wikipedia.org/wiki/China%E2%80%93North_Korea_border |
How are the leaders chosen in the United States? | The election of the President and the Vice President of the United States is an indirect vote in which citizens cast ballots for a slate of members of the U.S. Electoral College; these electors in turn directly elect the President and Vice President. | http://en.wikipedia.org/wiki/United_States_presidential_election |
Who discovered the molecules of water? | Water's composition (two parts hydrogen to one part oxygen) was discovered by the London scientist Henry Cavendish (1731-1810) in about 1781. He reported his findings in terms of phlogiston (later the gas he made was proven to be hydrogen) and dephlogisticated air (later this was proven to be oxygen). | http://www.lsbu.ac.uk/water/molecule.html |
Who was the second man to walk on the moon? | Buzz Aldrin (born Edwin Eugene Aldrin, Jr.; January 20, 1930) is an American engineer and former astronaut, and the second person to walk on the Moon. He was the Lunar Module Pilot on Apollo 11, the first manned lunar landing in history. | http://en.wikipedia.org/wiki/Buzz_Aldrin |
Is there an aurora borealis at the South Pole? | This results in an oval ring around each magnetic pole where auroras occur. The north pole aurora is called the aurora borealis and the aurora at the south pole is called the aurora australis. Depending on the level of recent solar activity, there may or may not be visible auroral activity all the way around the ring. | http://www.exploratorium.edu/learning_studio/auroras/seethem.html |
When was The Hobbit first published? | The Hobbit is a novel by J.R.R. Tolkien, set in Middle-earth. The book was first published on September 21, 1937 and is set in the years 2941 to 2942 of the Third Age before the events of The Lord of the Rings. | http://lotr.wikia.com/wiki/The_Hobbit |
How many square miles is the state of Texas? | Texas is the second largest U.S. state, behind Alaska, with an area of 268,820 square miles (696,200 km2). | http://en.m.wikipedia.org/wiki/Texas |
Which explorer coined the phrase New World? | The term "New World" ("Mundus Novus") was first coined by the Florentine explorer Amerigo Vespucci, in a letter written to his friend and former patron Lorenzo di Pier Francesco de' Medici in the Spring of 1503, and published (in Latin) in 1503-04 under the title Mundus Novus. | http://en.wikipedia.org/wiki/New_World |
Where was the first newspaper published in the world? | Acta Diurna' was the first newspaper published in Rome, around 59 BC. In 1605, the first printed weekly newspaper to be published in Antwerp was called Relation. | http://timesofindia.indiatimes.com/home/stoi/When-and-where-was-the-first-newspaper-published/articleshow/2477418.cms |
Where does Moulin Rouge take place? | It tells the story of a young English poet/writer, Christian (Ewan McGregor), who falls in love with the terminally-ill star of the Moulin Rouge, cabaret actress and courtesan Satine (Nicole Kidman). It uses the musical setting of the Montmartre Quarter of Paris, France. | http://en.m.wikipedia.org/wiki/Moulin_Rouge! |
Do babies have kneecaps when they are born? | As such, it takes a little longer than some bones to, well, become bone. Although it doesn't show up on X-rays, your baby does in fact have kneecaps. They're just not bony kneecaps. At birth, these kneecaps are still cartilage, and remain so for a few years. | http://health.howstuffworks.com/human-body/systems/musculoskeletal/babies-kneecaps1.htm |
When Alaska was purchased? | On March 30, 1867, the United States reached an agreement to purchase Alaska from Russia for a price of $7.2 million. The Treaty with Russia was negotiated and signed by Secretary of State William Seward and Russian Minister to the United States Edouard de Stoeckl. | http://www.loc.gov/rr/program/bib/ourdocs/Alaska.html |
What day was the constitution signed? | The Constitution was written during the Philadelphia Convention—now known as the Constitutional Convention—which convened from May 25 to September 17, 1787. It was signed on September 17, 1787. | http://constitutioncenter.org/learn/educational-resources/constitution-faqs/ |
What was the name of the capital of New Spain? | The Spanish governed New Spain from Mexico City, formerly Tenochtitlan: the conquered capital of the Aztec Empire. It was ruled by a viceroy, governing the various territories on behalf of the King of Spain. | http://en.wikipedia.org/wiki/New_Spain |
Which continent has the smallest land mass? | A continent is one of Earth's seven main divisions of land. The continents are, from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. | http://education.nationalgeographic.com/education/encyclopedia/continent/?ar_a=1 |
Is the earth's rotation slowing down? | The planet's rotation is slowing down overall because of tidal forces between Earth and the moon. Roughly every 100 years, the day gets about 1.4 milliseconds, or 1.4 thousandths of a second, longer. | http://www.huffingtonpost.co.uk/2012/06/30/extra-second-added-to-clo_n_1639588.html |
Who wanted the turkey to be the national bird of the United States? | Benjamin Franklin wanted to make the wild turkey the national bird of the United States. | http://www.omgfacts.com/lists/5032/Benjamin-Franklin-wanted-to-make-the-wild-turkey-the-national-bird-of-the-United-States |
How fast is the Earth rotation in mph? | The circumference of the Earth at the equator is 25,000 miles. The Earth rotates in about 24 hours. Therefore, if you were to hang above the surface of the Earth at the equator without moving, you would see 25,000 miles pass by in 24 hours, at a speed of 25000/24 or just over 1000 miles per hour. | http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970401c.html |
How many rooms are there in Buckingham Palace? | A. Buckingham Palace has 775 rooms. These include 19 State rooms, 52 Royal and guest bedrooms, 188 staff bedrooms, 92 offices and 78 bathrooms. Buckingham Palace is 108 metres long across the front, 120 metres deep (including the quadrangle) and 24 metres high. | http://www.royal.gov.uk/FrequentlyAskedQuestions/20%20most%20asked%20questions.aspx |
When was roller skating invented? | The first patented roller skate was introduced in 1760 by Belgian inventor John Joseph Merlin. His roller skate wasn't much more than an ice skate with wheels where the blade goes, (a style we would call inlines today). | http://en.wikipedia.org/wiki/Roller_skates |
Which is the pound key? | Outside of North America the symbol is called hash and the corresponding telephone key is called the "hash key" (and the term "pound sign" often describes the British currency symbol "£"). The symbol is easily confused with the musical symbol called sharp (♯). | http://en.m.wikipedia.org/wiki/Number_sign |
What countries are located in the taiga? | The taiga is the largest continuous biome in the world. This biome is located in the northern part of the Northern Hemisphere and is in North America, Asia, and Europe. It stretches across Alaska, Canada, Scandinavia, and Russia; spreading through the Northern Hemisphere. | http://www.ri.net/schools/West_Warwick/manateeproject/Taiga/land.htm |
When was the first regular TV broadcast in the United States? | Profile America -- Thursday, May 12th. This week marks the anniversary of the first regularly scheduled television broadcasts -- and the date may surprise you. They were made in 1928 and originated from radio station WGY in Schenectady, New York. | http://tvbythenumbers.zap2it.com/2011/05/12/first-regularly-scheduled-tv-broadcasts-began-83-years-ago-this-week/92330/ |
Where do snow crab legs come from? | Snow Crab. Chionoecetes opilio. Snow crabs live along the continental shelf at depths less than 200 m in the Bering Sea, the Chukchi Sea, and in the western Atlantic Ocean as far south as Maine; they are not present in the Gulf of Alaska. | http://www.afsc.noaa.gov/Education/oceanlife/crabs/snow_crab.htm |
Why is it called a pineapple? | The term "pine cone" for the reproductive organ of conifer trees was first recorded in 1694. When European explorers discovered this tropical fruit in the Americas, they called them "pineapples" (first so referenced in 1664 due to resemblance to what is now known as the pine cone). | http://en.m.wikipedia.org/wiki/Pineapple |
What color is a blue lobster after it is cooked? | Even blue and yellow lobsters turn bright red when they are cooked. When the lobster shell is introduced to heat, the proteins that astaxanthin bind to are destroyed so the pigment shows up in its natural state, a bright red. | http://mlcalliance.org/all-about-lobster/lobster-101-color/ |
Is it possible to fire a gun in space? | Fires can't burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required. | http://m.livescience.com/18588-shoot-gun-space.html |
Who are the only NFL teams to never play in a superbowl? | And then there's four franchises -- the Cleveland Browns, Detroit Lions, Houston Texans, and Jacksonville Jaguars -- who have never been to the Super Bowl. Cleveland has lost three AFC Championship appearances, Jacksonville two, Detroit one, and Houston has never made it past the AFC Divisional round. | http://www.bigcatcountry.com/2014/2/4/5378144/nfl-teams-that-have-never-won-the-super-bowl-jaguars-among-13 |
How long is a typical freight train? | The average freight train is about 1 to 1¼ miles in length (90 to 120 rail cars). When it's moving at 55 miles an hour, it can take a mile or more to stop after the locomotive engineer fully applies the emergency brake. An 8-car passenger train moving at 80 miles an hour needs about a mile to stop. | http://www.minnesotasafetycouncil.org/OL/stop.cfm |
Why is it called a sundae? | "Ice Cream sundaes were invented when it became illegal to sell ice-cream sodas on a Sunday in the American town of Evanston during the late 19th century. To get around the problem some traders replaced the soda with syrup and called the dessert an "Ice Cream Sunday." | http://en.m.wikipedia.org/wiki/Sundae |
How many teeth are in a dogs mouth? | The average adult dog has 42 teeth: 22 in the mandible or lower jaw, and 20 in the maxilla or upper jaw. In each jaw there are 6 incisors, 2 canines, and 8 premolars. There are 6 molars in the lower jaw and 4 in the upper jaw. In adult dogs, approximate age can be determined by checking the wear on the incisors. | http://www.m.webmd.com/a-to-z-guides/teeth-gums-basics-dogs |
Do all birds have knees? | Yes, birds have knees (they're often under the feathers and not easily visible), and they bend the same way our knees bend. The part of a bird's legs that bends backwards when it walks is the ankle. | http://www.enchantedlearning.com/subjects/birds/Allaboutbirds.html |
Where is the world's oldest operating amusement park located? | Bakken, located in Klampenborg, North of Copenhagen (Denmark), opened in 1583 and is currently the oldest operating amusement park in the world. The park claims to have over 150 attractions, including a wooden roller coaster built in 1932. | http://www.guinnessworldrecords.com/records-11000/oldest-amusement-park-in-operation/ |
Which spider has the most potent venom? | Pholcids, or daddy long-legs spiders, are venomous predators, and although they never naturally bite people, their fangs are similar in structure to those of brown recluse spiders, and therefore can theoretically penetrate skin. | http://www.livescience.com/33625-daddy-longlegs-spiders-poisonous.html |
Is hair fur? | It turns out though that hair and fur are chemically indistinguishable, both made up of keratin. The argument that is often cited as to why there must be a difference is that human hair will just keep growing forever, while most animal “fur” stops at a set length. | http://www.todayifoundout.com/index.php/2010/02/there-is-no-difference-between-fur-and-hair/ |
How many times does a bee flap its wings in a second? | "In contrast to the fruit fly that has one eightieth the body size and flaps its wings 200 times each second, the much larger honeybee flaps its wings 230 times every second." | http://m.livescience.com/528-scientists-finally-figure-bees-fly.html |
What is the free silver movement? | Free Silver Movement. Late-19th-century U.S. political movement that advocated unlimited coinage of silver. Proponents included owners of western silver mines, farmers who wanted higher crop prices, and debtors who believed an expanded currency would allow them easier payment. | http://www.merriam-webster.com/concise/Free%20Silver%20Movement |
Why did Yankee Doodle stick a feather in his hat and call it macaroni? | Back in Pre-Revolutionary America when the song 'Yankee Doodle' was first popular, the singer was not referring to the pasta 'macaroni' in the line that reads 'stuck a feather in his hat and called it macaroni.' 'Macaroni' was a fancy ('dandy') style of Italian dress widely imitated in England at the time. | http://www.booktryst.com/2010/03/mother-of-political-satire-or-why-did.html?m=1 |
Which river rises in the Black Forest and flows into the Black Sea? | The river rises in the Black Forest Mountains of Germany and flows eastward into the Black Sea. The Danube River is an important international waterway, flowing through or forming a part of the borders of ten countries and through major cities such as Vienna, Bratislava, Budapest, and Belgrade. | http://deltas.usgs.gov/rivers.aspx?river=danube |
How many Native Americans are in the US? | Out of the total U.S. population, 2.9 million people, or 0.9 percent, reported American Indian or Alaska Native alone. In addition, 2.3 million people, or another 0.7 percent, reported American Indian or Alaska Native in combination with one or more other races. | http://en.wikipedia.org/wiki/Native_Americans_in_the_United_States |
Why does SE Hinton only use her initials? | After the success of The Outsiders, Hinton chose to continue writing and publishing using her initials, because she did not want to lose what she had made famous, [e] and to allow her to keep her private and public lives separate. | http://en.wikipedia.org/wiki/S._E._Hinton |
How many miles per minute is the speed of light? | The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second. | http://www.space.com/15830-light-speed.html |
Is sucralose natural? | Sucralose is not a natural product – it is not found in nature. Although sucralose is made from sugar, the sugar molecule is chemically modified to make sucralose which is classed as an artificial sweetener. | http://sucralose.org/your-questions-answered/ |
Who invented the kazoo? | It was on such an instrument that the kazoo, invented in the 19th century by an African American named Alabama Vest in Macon, Georgia, United States, is based. The first kazoo was manufactured to Vest's specifications by Thaddeus Von Clegg, a German clockmaker in Macon. | https://www.princeton.edu/~achaney/tmve/wiki100k/docs/Kazoo.html |
Which is the hardest bone in the human body? | The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and patella forming the knee joint. By most measures the femur is the strongest bone in the body. The femur is also the longest bone in the body. | http://en.wikipedia.org/wiki/Femur |
Is the piano a string instrument? | There are also problems with classifying certain keyboard instruments. For example, the piano has strings, but they are struck by hammers, so it is not clear whether it should be classified as a string instrument or a percussion instrument. | http://en.wikipedia.org/wiki/Musical_instrument_classification |