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441/ One cubic centimetre
of blood contains as many as 512 billion red cells and 11
million white cells.
442/ Lobsters can live up
to 50 years.
443/ Dogs only see shades
of grey and most of them are short-sighted.
444/ Human eyes can distinguish
250 different pure colours, 17,000 mixed colours and 300 shades
of grey.
445/ The poison of the arrow-poison
frog of South America is so powerful that one millionth of
a gram is enough to kill a human.
446/ The human body gives
out about 100 calories of heat an hour - equivalent to a 120
watt electric light bulb.
447/ Babies are born with
about 350 bones - an adult ends up with just 206 bones.
448/ A giant squid can grow
up to 12 metres long and weigh 500kg.
449/ In some species of termites
the Queen can grow up to 20,000 times the size of a worker
termite. And she can lay up to 30,000 eggs a day.
450/ The magnitude 7.4 earthquake
which struck Ismit, Turkey on August 17th 1999 is known to
have killed at least 15,000 people.
451/ The first designs for
flying machines, submarines and even diving suits were first
drawn by Leonardo Da Vinci in the 15th century.
452/ One in four animals on
our planet is a beetle!
453/ Thrust SSc was the first
car to break through the sound barrier travelling at 763 mph
on 15th October 1997 at Black Rock Desert, Nevada.
454/ If an Atomic clock was
set 100 million years ago, today it would be less than 100
seconds adrift.
455/ Adult fleas can live
for up to 2 years during which time the female can lay up
to 1200 eggs.
456/ The 747 has carried 1.6
billion people 20 billion miles - the equivalent of flying
the entire population of LA and NYC to the Moon and back.
457/ The kilauea volcano on
the Island of Hawaii has produced 1.5 cubic kilometres of
lava in 16 years.
458/ The Mariana Trench in
the West Pacific is so deep it could submerge Mount Everest
and still be over a mile deep.
459/ The highest temperature
ever recorded on Earth was 136 degrees F in El Azizia, Libya
in 1922.
460/ The Black Box flight
recorder was first invented in 1958 at the Aeronautical Research
Laboratories, melbourne, Australia. It is coloured orange.
Click on the links below for more great
facts...
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