| A typical lightning bolt is 50,000 degrees F, which is hotter than the surface of the sun. |
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| According to an old English system of time units, a moment is one and a half minutes. |
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| Alfred Nobel invented dynamite in 1866. |
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| Benjamin Franklin began his research into electricity in 1746. |
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| DNA was first discovered in 1869 by Swiss Friedrich Mieschler. |
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| Englishman Roger Bacon invented the magnifying glass in 1250. |
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| Gabriel Fahrenheit invented the mercury thermometer in 1714. |
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| In February 2001 it was announced that the human genome contains not 100,000 genes as originally expected, but only 30,000. |
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| Isaac Newton published his 'Principia' explaining the laws of gravity in 1687. |
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| Laser stands for 'Light Amplification by Stimulated Emission of Radiation'. |
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| Nobody knows how big the universe is. |
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| On average women say 7,000 words per day. Men manage just over 2000. |
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| One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a pea. |
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| Scientists have discovered over 20 planets outside our solar system. |
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| Sound travels about 4 times faster in water than in air. |
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| The first laser was constructed in 1960 by Theodore H. Maiman of the United States using a rod of ruby. |
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| The first standardized system of measurement was created around 2700BC in Mesopotamia. |
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| The Hubble telescope is so powerful that it is like pointing a beam of light at a dime that is two miles away. |
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| The machine to win the first flying prize in 1901 was an airship. |
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| The modern safety match was invented in Sweden in 1855 by J.E. Lundstrom. It works because one of the chemicals needed to start the fire is in the striking surface. |
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| The molecular structure of DNA was first determined by Watson and Crick in 1953. |
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| The only letter not appearing on the Periodic Table is the letter 'J'. |
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| The speed of light is 186,000 miles per second. |
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| The thermometer was invented in 1607 by Galileo. |
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| There are between 100,000,000,000 and 1,000,000,000,000 stars in a normal galaxy. |
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| Water expands before it freezes. |
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| You can make a clock work using a copper wire, a penny and a lemon or potato. |
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