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Astro Steves Astrophysics Blog: 50 interesting science facts

Saturday, 30 April 2011

50 interesting science facts

1 – The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (equal to 186,287.49 miles per second).

2 – It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth.

3 – 10 percent of all human beings ever born are alive at this very moment.

4 – The Earth spins at 1,000 mph but it travels through space at an incredible 67,000 mph.

5 – Every year, over one million earthquakes shake the Earth.

6 – When Krakatoa erupted in 1883, its force was so great it could be heard 4,800 kilometers away in Australia.

7 – Every second around 100 lightning bolts strike the Earth.

8 – Every year lightning kills 1000 people.

9 – In October 1999 an Iceberg the size of London broke free from the Antarctic ice shelf .

10 – If you could drive your car straight up you would arrive in space in just over an hour.

11 – Human tapeworms can grow up to 22.9m.

12 – The Moon is 4.56 billion years old, but the Earth is around 4.8 billion years old (The moon was formed from the Earth)

13 – The dinosaurs became extinct before the Rockies or the Alps were formed.

14 – Female black widow spiders eat their males after mating.

15 – When a flea jumps, the rate of acceleration is 20 times that of the space shuttle during launch.

16 – If our Sun were just inch in diameter, the nearest star would be 445 miles away.

17 – Astronauts cannot belch – there is no gravity to separate liquid from gas in their stomachs.

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

19 – One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a pea.
20 – DNA was first discovered in 1869 by Swiss Friedrich Mieschler.

21 – The molecular structure of DNA was first determined by Watson and Crick in 1953.

22 – The first synthetic human chromosome was constructed by US scientists in 1997.

23 – The thermometer was invented in 1607 by Galileo.

24 – Alfred Nobel invented dynamite in 1866.

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

26 – The tallest tree ever was an Australian eucalyptus – In 1872 it was measured at 435 feet tall.

27 – Christian Barnard performed the first heart transplant in 1967 – the patient lived for 18 days.

28 – An electric eel can produce a shock of up to 650 volts.

29 – ‘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.

30 – The Ebola virus kills 4 out of every 5 humans it infects.

31 – In 4.5 to 5 billion years the Sun will run out of fuel and turn into a Red Giant.

32 – 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.

33 – There are 60,000 miles of blood vessels in the human body.

34 – An individual blood cell takes about 60 seconds to make a complete circuit of the body.

35 – On the day that Alexander Graham Bell was buried the entire US telephone system was shut down for 1 minute in tribute.

36 – The low frequency call of the humpback whale is the loudest noise made by a living creature.

37 – Matter can be in two superpositions at once, but in minute amounts for minute amounts of time.

38 – Each person sheds 40lbs of skin in his or her lifetime.

39 – At 15 inches the eyes of giant squids are the largest on the planet.

40 – The Universe contains over 100 billion galaxies.

41 – Wounds infested with maggots heal quickly and without spread of gangrene or other infection.

42 – More germs are transferred shaking hands than kissing.

43 – The fastest speed a falling raindrop can hit you is 18mph.

44 – It would take over an hour for a heavy object to sink 6.7 miles down to the deepest part of the ocean.

45 – Around a million, billion neutrinos from the Sun will pass through your body while you read this sentence.

46 – The deepest part of any ocean in the world is the Mariana trench in the Pacific with a depth of 35,797 feet.

47 – Every hour the Universe expands by around 1 billion miles in all directions.

48 – Somewhere in the flicker of a badly tuned TV set is the background radiation from the Big Bang.

49 – Even traveling at the speed of light it would take 2 million years to reach the nearest large galaxy, Andromeda.

50 – A thimbleful of a neutron star would weigh over 100 million tons.


Improved from a quote from http://immenseknowledge.blogspot.com/2006/10/50-interesting-science-facts.html. I havn't personaly checked all of these facts yet though.

2 comments:

  1. Great post Astro on Ebola! It's funny: We just created an amazing Infographic on "Ebola Virus. What Is It? Interesting Facts" because we found people were missing the essential facts about Ebola.

    Check it out: www.BioMedicalWasteSolutions.com/What-Is-Ebola/

    Let me know what you think:)

    ReplyDelete
  2. Please can you analysis in my web site www.timeflow.org And,

    Very small free roaming particles lifetime very short.[free photons, free notron, free proton,free
    electron ,vs].And their lifetime is its energy Mc2. Protons are observed to be stable and their theoretical minimum half-life is 1x10'36 years.Grand unified theories generally predict. That proton
    decay should take place, although experiments so far have only resulted in a lower limit 10'35 years for proton's lifetime. I see that. The earth lifetime is its Mc'2 energy. When this is calculated
    the lifetime of earth.

    Earth Mass= 5.97x10'24 kg. the lifetime 1 kg of mass in space is 2851927903,26 years.

    Earth Lifetime is 1.7x10'34 years. I think that, this is a very interesting result. Thanks.

    Best Regards
    Salih Kırcalar

    ReplyDelete

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