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Ted Turner
Ted Turner was born in November 19, 1938 in Cincinnati, OH and he is a famous film/tv producer. He is well known also for his collaboration with several televisions: WTBS,CNN,TNT and many others. He is one of the richest persons in the world having a net worth of $2.0 billions. As an occupation...

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Science & Tech Articles starting with H: page 1

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How were calendars developed?

How were calendars developed?

Calendars have been used for thousands of years. The early ones were usually based on the phases of the Moon and the movement of the Sun. We still depend largely on the natural movements...

How is time calculated?

How is time calculated?

The Earth spins on its own axis once every 24 hours, or day. The Earth orbits the Sun every 365 1/4 days, or year. Every 4 years we need to have a leap year with an extra day to make...

How does a gyroscope stand up?

How does a gyroscope stand up?

A gyroscope is a heavy metal wheel made with ball bearings that reduce friction. Once the wheel is set spinning at high speed in an upright position, the force of gravity will try to...

How does electricity produce heat and light?

How does electricity produce heat and light?

A good conductor such as copper has only very low electrical resistance. It does not get very hot when electricity flows though it, making copper suitable for household wiring. Other...

How is it possible to make new elements?

How is it possible to make new elements?

New elements are created by bombarding other elements with radiation in an atomic reactor. Scientists have made 16 artificial elements by bombarding uranium and other radioactive elements. Many...

How does radio communication work?

How does radio communication work?

Radio signals are transmitted using a carrier wave. A radio transmitter changes, or modulates, this radio wave in order to convey information. In AM radio the height of the carrier...

How fast does light travel?

How fast does light travel?

The speed of light is the fastest speed known - light travels through the vacuum of space at 300,000 km per second. Nothing else can travel at this speed, and the theory of relativity...

How do batteries work?

How do batteries work?

Batteries produce electricity by means of chemical action. A battery contains two different conductors, or electrodes. Usually, one of these is the metal case of the battery. The...

How does a compass work?

How does a compass work?

The magnetized needle of a compass tries to align itself towards the Earth's field of magnetic force. The magnetized needle balances on a pointed pin or floats on oil to allow it to...

How is nuclear energy produced?

How is nuclear energy produced?

Nuclear energy is produced by changes in the nucleus of the atom of a radioactive element such as uranium or plutonium. This process is called nuclear fission. The nucleus is split...

How do we measure temperature?

How do we measure temperature?

Temperature is a measurement of the amount of heat that is stored in an object. It is measured against a scale in either degrees Celsius (C) or degrees Fahrenheit (F) on a thermometer....

How are crystals formed?

How are crystals formed?

Crystals are solid substances that have their atoms arranged in regular patterns. Most naturally occurring substances form crystals under the right conditions, although they are not...

HAProxy: 8 years of perfect security for TCP and HTTP-based applications

HAProxy: 8 years of perfect security for TCP and HTTP-based applications

HAProxy is an amazing application but most important, is an application which evolved in time. Finding a software with a strong background is almost impossible nowadays (maybe excepting...

How do computers work?

How do computers work?

A computer is a device for processing information very rapidly and accurately. It processes words, pictures, sounds and numbers, and some computers can make billions of calculations...

How do nuclear power stations work?

How do nuclear power stations work?

Once nuclear fission takes place inside a nuclear reactor, the chain reaction has to be controlled, or moderated. The reactor's core of uranium is surrounded with a substance that slows...

How is electricity made?

How is electricity made?

Energy cannot be created. An electrical generator is simply a means of converting mechanical energy into electrical energy. In its simplest form, a generator spins coils of wire in...

How much of the Earth is covered by water?

How much of the Earth is covered by water?

More than two-thirds of the Earth's surface is covered by seas and oceans. About 72 percent of the Earth's surface is water. This water is either in the oceans, locked away as ice...

Hebrew Calendar

Hebrew Calendar

The Hebrew calendar (also called Jewish calendar) is a luni-solar calendar used by Jews. Today, this calendar is usually used for various religious observances. Also, Hebrew calendar...

How to save your PC from a computer virus?

How to save your PC from a computer virus?

One thing we don't want in our computers for sure is a computer virus. A computer virus is responsible for huge data loss in our computers. It corrupts your system and destroys all...

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