Thus, man is making use of the Arctic in various ways even though it is a hard place to live.
Sin
A sin is a bad act. Particularly, it is a bad act against another person(s), an animal, a spirit, or a god.
In Abrahamic religions, such as Christianity and Judaism, it is an act that goes against what God wants. It turns people away from God and true happiness. In Exodus chapter 20, Moses was given the Ten Commandments by God, explaining important sins like murder and idolatry. This is not believed by all people, and not all societies have the same idea of sin.
There is a difference between sins and prohibitions. For example, Muslims and Jews say that it is wrong to eat pork, and Hindus do not eat beef. That is for them, but for others it is not wrong to eat these things.
Summer
Summer is one of the four seasons. It is the hottest season of the year. In some places, summer is the wettest season (with the most rain), and in other places, it is a dry season. Four seasons are found in areas which are not too hot or too cold. Summer happens to the north and south sides of the Earth at opposite times of the year. In the north part of the world, summer takes place between the months of June and September, and in the south part of the world, it takes place between December and March. This is because when the north part of the Earth points towards the Sun, the south part points away.
Many people in rich countries travel in summer, to seaside resorts, beaches, camps or picnics. In some countries, they celebrate things in the summer as well as enjoying cool drinks. Other countries get snow in the summer just like winter.
Summer is usually known as the hottest season
Month
A month is an amount of time used with calendars. It is about 1/12th of a year. It is a little longer than a natural synodic orbital period of the moon, ca. 29.5 days. Lunar calendars use the natural synodic month. For some purposes astronomers use the sidereal month of 27.3 days.
Other calendars, called "solar calendars", ignore the moon, and depend entirely on the Sun — for example, the Gregorian calendar of 365 or 366 days (12 months) used in much of the world today.
Alberta
Alberta is a province in western Canada. It is bounded by the provinces of British Columbia on the west, Saskatchewan on the east, the US state of Montana on the south and the Northwest Territories to the North.
Alberta is the fourth largest Canadian province with an area of . Alberta has around 4,067,175 living there, making it the fourth most populous province in Canada.
The capital of Alberta is Edmonton lying near the middle of Alberta. The city of Calgary, Alberta’s other major centre is located about 300 kilometres to the south of Edmonton.
Canada became a country in 1867. It was much smaller than it is now, and did not include the parts of the country to the west. From 1670 to 1870, parts of Alberta were included in "Rupert's Land," land owned by the Hudson’s Bay Company in support of it’s trading monopoly over a vast area of Canada and parts of the United States. Northern part of Alberta was part of the what was then called "Northwestern Territories."
Alberta was made a province of Canada in 1905, at the same time as Saskatchewan.
The Aboriginal peoples of Canada are referred to as First Nations or by the Name of their Nation. Mixed (European/Aboriginal) People are called Metis.
Alberta is very cold in the winter and has a lot of snow during the very cold season. There is a dry part of Alberta in the south.
Alberta has a huge amount of oil (in the Athabasca Oil Sands) and natural gas.
There are also a lot of farms in Alberta. Farmers grow several different types of crops Farmers mainly grow wheat. There are also a lot of cows on Alberta farms, and Alberta beef is exported.
There is diesel fuel in Alberta.
Electronics
Electronics is the study of electricity (the flow of electrons) and how to use that to build things like computers. It uses circuits that are made with parts called components and connecting wires to do useful things. The science behind Electronics comes from the study of physics and gets applied in real-life ways through the field of electrical engineering.
Many people can name several simple electronic components, such as transistors, fuses, circuit breakers, batteries, motors, transformers, LEDs and bulbs, but as the number of components starts to increase, it often helps to think in terms of smaller systems or blocks, which can be connected together to do something useful.
One way of looking at an electronic system is to separate it into three parts:
A television set, for example, has as its input a broadcast signal received from an antenna, or for cable television, a cable.
Signal processing circuits inside the television set use the brightness, colour, and sound information contained in the received signal to control the television set's output devices. The display output device may be a cathode ray tube (CRT) or a plasma or liquid crystal display screen. The audio output device might be a magnetically driven audio speaker. The display output devices convert the signal processing circuits' brightness and colour information into the visible image displayed on a screen. The audio output device converts the processed sound information into sounds that can be heard by listeners.
Analysis of a circuit/network involves knowing the input and the signal processing circuit, and finding out the output. Knowing the input and output and finding out or designing the signal processing part is called "synthesis".
People started experimenting with electricity as early as 600 B.C.E, when Thales of Miletus discovered rubbing fur on amber would cause them to attract each other.
Starting in the 1900s, devices used glass or metal vacuum tubes to control the flow of electricity. With these components a low power voltage can be used to change another. This revolutionized radio, and allowed other inventions.
In the 1960s and early 1970s transistors and semiconductor began replacing vacuum tubes. Transistors can be made much smaller than vacuum tubes and they can work using less energy.
At about the same time, integrated circuits (circuits that are integrated inside other circuits) became commonly used. Integrated circuits made it possible to reduce the number of parts needed to make electronic products and made the products much cheaper in general.
Analog circuits are used for signals that have a range of amplitudes. In general, analog circuits measure or control the amplitude of signals. In the early days of electronics, all electronic devices used analog circuits. The frequency of the analog circuit is often measured or controlled in analog signal processing. Even though more digital circuits are made, analog circuits will always be necessary, since the world and its people work in analog ways.
Pulse circuits are used for signals that require rapid pulses of energy. For example, radar works by using pulse circuits to create and send high powered bursts of radio energy from radar transmitters. Radar antennas are used to send ("transmit") the high powered bursts in the direction the antenna is pointed.
The radar transmitter's pulses or bursts of radio energy hit and bounce back (they are "reflected") from hard and metallic objects. Hard objects are things like buildings, hills, and mountains. Big things made of metal include aircraft, bridges, or even objects in space, like satellites. The reflected radar energy is detected by radar pulse receivers which use both pulse and digital circuits together. The pulse and digital circuits in radar pulse receivers are used to show the location and distance of objects which have reflected the radar transmitter's high powered pulses.