The Balfour Declaration of 1917 was a policy by the government of the United Kingdom to discuss the partitioning of the Ottoman Empire after World War I. The declaration also said that Britain supported plans for a Jewish homeland in Palestine. The issuance of the Declaration had many long lasting consequences, and was a key moment in the lead-up to the Arab–Israeli conflict, often referred to as the world's "most intractable conflict".
The Balfour Declaration was a letter from British government minister Arthur Balfour to Jewish leader Walter Rothschild, 2nd Baron Rothschild, dated 2 November 1917.
Radius
In geometry, the radius of a circle or sphere, written as formula_1, is the shortest connection between the center and the boundary. It is either the distance from the center to the perimeter (in the case of a circle), or the distance from the center to the surface (in the case of a sphere). It is half of the diameter. That is, when "r" is the radius and "d" is the diameter:
"r" = "d" ÷ 2
"d" = 2 x "r" = "r" + "r"
The relationship between the radius formula_2 and the circumference formula_3 of a circle is
formula_4
The area formula_5 of a circle of radius
formula_2 is
formula_7
Morality
Morality is the concept of doing the right thing. Morals are basic guidelines for living.
Many people have written about ways of choosing what the right thing is. Some believe that there is an objective (true even if you do not agree with it) morality, often thinking it was set by God or another similar being; others think that morality is subjective (that what is good or bad is a community choice).
People can learn morals from religion, parents, friends, school, books, or from ethical traditions. People that teach or follow morals are called moralists.
It can also be a lesson that someone learns in a book or story. It is usually one line at the end of the story ("The moral of this story is..."). Fables are stories with a moral.
The opposite of "moral" is "immoral", meaning the wrong thing to do. "Amoral" means something that is not related to morality, or has no morally good or bad aspect to it. It is the same as "morally neutral". Morality means that you can tell between a right and a wrong thing.
Saliva
Saliva is the watery substance made in the mouths of humans and many animals. Saliva begins digesting food in the mouth, and moistens food to make swallowing easier. Saliva consists of 99.5% water.
The mouth is obviously the point of entry to the whole alimentary canal. It follows from this that saliva must both help digestion, and protect against infections.
The digestion part is by three enzymes, one each for carbohydrates, fats and proteins. The digestion started here carries on in the stomach. There are some other 'minor' enzymes as well, and we do not know the full story about them yet. Also there is a pain-killing opiorphin, and a wrap-around haptocorrin which keeps vitamin B12 safe from stomach acids. Finally, there are a set of anti-bacterial proteins which make life difficult for any bacteria which get in with the food.
Villarosa
Villarosa is a town in the province of Enna, in the region of Sicily in southern Italy.
Maria Sharapova
Maria Sharapova (born 19 April 1987) is a Russian tennis player. She was born in Nyagan, Western Siberia, RSFSR.
Her parents had moved from Belarus to protect themselves from the Chernobyl nuclear accident. The Sharapov family moved again in 1989, when Maria became interested in tennis, when watching her father play, and played tennis with a second-hand racquet. She would practice tennis by hitting the tennis ball against the wall every day, and her dad soon noticed that she was very good at the sport.
Maria's tennis coaches told the Sharapovs that they should move to Moscow, Russia, to get better training. The Sharapova moved again, from Moscow, to follow Maria's coach, Martina Navratilova's advice, to move to the United States.
There was a problem, though. Sharapova's mother, Yelena, could not get a visa to go to the United States. Meanwhile, Maria and her father tried to get Maria to go to a famous sports school, and they also had to learn English. Maria showed so much talent that soon, she got a full scholarship to attend the school. At first though, Maria's dad had to pay for Maria to stay at the famous school, doing all sorts of jobs so that they could be able to pay for the school.
She began to win tournaments and many people started to notice her. Her games improved, and Maria gained more fans.
She has won 35 singles titles in her career, including five Grand Slam championships: Wimbledon in 2004, the US Open in 2006, the Australian Open in 2008 and the French Open in 2012 and 2014. She won an Olympic silver medal at the 2012 Summer Olympics. She is the world number 3 women's tennis player as of September 2015. In 2005, she was ranked world number 1 for the first time, and in 2012 for the last time.
In March 2016, Sharapova revealed she had failed a drug test at the 2016 Australian Open, admitting to testing positive for meldonium, a substance banned by the World Anti-Doping Agency (WADA) at the start of 2016. On June 8, 2016, she was suspended from playing tennis for two years by the International Tennis Federation (ITF).
In Russia, female surnames are changed so that their gender can be identified, so Sharapov becomes Sharapova.
True bug
The true bugs are an order of insects. Biologists call true bugs the Hemiptera. There are around 80,000 species of true bugs. The word "bug" by itself can have other meanings.
There are many different kinds of true bugs, some of which are aphids, cicadas, planthoppers, shield bugs, and others. All of these are true bugs. Their size is from 1 mm to over 10 cm. All true bugs have similar mouthparts, which they use to suck up plant sap.
Bugs have piercing, sucking mouthparts: this defines the Hemiptera. They pierce plants with their long, tube-like mouth, called a proboscis or a beak. They cannot chew. The true bug pumps saliva through this mouth, to partly digest their food. It then sucks up the food, which is usually plant sap.
The name "Hemiptera" is from the Greek: it means "hemi" (half) and "pteron" (wing). Most true bugs have half of their front wings hardened and have the other half soft. These wings are called "hemelytra" (singular "hemelytron"), because they halfway look like the hard wings (elytra) of beetles. The hind wings are totally soft and are shorter than the front wings.
The antennae of bugs usually have five segments. The tarsi (foot parts) of their legs have three or fewer segments.
Bug
Bug can mean many different things:
Dayton, Ohio
Dayton is a large city in the American state of Ohio. It is where Orville and Wilbur Wright grew up. The Wright-Patterson Air Force Base, also near Dayton, gets part of its name from the Wright brothers. The National Museum of the United States Air Force is inside the Wright-Patterson Air Force Base.
Dayton has a humid continental climate ("Dfa" in the Koeppen climate classification).
Ten people were killed in a mass shooting in Dayton on 4 August 2019.
Native Esperanto speakers
Native Esperanto speakers are people who learned Esperanto as one of their first languages. Esperanto is not spoken in any countries as an official language, so they must become bilingual, trilingual, or multilingual. Native Esperanto speakers can use this language completely and more fluently than non-native Esperanto speakers. There are not very many native Esperanto speakers. It is thought that no more than one or two thousand people speak Esperanto as their first language.
Children who learned Esperanto as one of their first languages speak with grammar like the other languages they learned.
Soldering iron