20 Interesting science fact (PART 2)

1/ Astronauts cannot belch - there is no gravity to separate liquid from gas in their stomachs.

2/ The air at the summit of Mount Everest, 29,029 feet is only a third as thick as the air at sea level.

3/ One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a ...pea.

4/ DNA was first discovered in 1869 by Swiss Friedrich Mieschler.

5/ The molecular structure of DNA was first determined by Watson and Crick in 1953.

6/ The first synthetic human chromosome was constructed by US scientists in 1997.

7/ The thermometer was invented in 1607 by Galileo.

8/ Englishman Roger Bacon invented the magnifying glass in 1250.

9/ Alfred Nobel invented dynamite in 1866.

10/ Wilhelm Rontgen won the first Nobel Prize for physics for discovering X-rays in 1895.

11/ The tallest tree ever was an Australian eucalyptus - In 1872 it was measured at 435 feet tall.

12/ Christian Barnard performed the first heart transplant in 1967 - the patient lived for 18 days.

13/ The wingspan of a Boeing 747 is longer than the Wright brother's first flight.

14/ An electric eel can produce a shock of up to 650 volts.

15/ 'Wireless' communications took a giant leap forward in 1962 with the launch of Telstar, the first satellite capable of relaying telephone and satellite TV signals.

16/ The earliest wine makers lived in Egypt around 2300 BC.

17/ The Ebola virus kills 4 out of every 5 humans it infects.

18/ In 5 billion years the Sun will run out of fuel and turn into a Red Giant.

19/ Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts - not all at once), but this is rare. They never lie down.

20/ A pig's orgasm lasts for 30 minutes.

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