In the first trillionth of a second of its
creation, the temperature of the universe was ten billion trillion trillion
degrees Celsius which means a number 1 followed by ‘34’ zeroes.
The Universe is expanding by about 70 km (4.3
miles) every second.
All the elements on Earth, including all the
elements in your body, were produced in stars.
Dinosaur skulls are made up of delicate bones
which do not often fossilize. Scientists did not find a skull of the most famous
Sauropod, Apatosaurus (or Brontosaurus as it was known then) until a hundred
years after the first skeletons had been found.
The Sauropod Diplodocus used a long whip like
tail for defense. When thrashed, the tip of the tail could break the sound
barrier, producing a thunderous crack to signal other dinosaurs.
As the smallest Jurassic dinosaur, the tiny
Compsognathus had to be careful so that it was not squashed in the land of
giants. It was about the size of a chicken.
If wet sphagnum moss is dried out, it becomes
very absorbent. In the past, it was used in babies’ nappies to soak up urine
and in the hospitals to dress wounds in order to soak up blood.
Bristlecone pines are the oldest trees on the
planet. Growing slowly on cold, windswept mountain sides in western
USA, They can
live for thousands of years. The oldest specimen is known as Methuselah, and is
about 4,800 years old.
Some species of bamboo grow so fast that you can
almost watch it happening. Bamboo belongs to the grass family, and the fastest
growing specimens can add more than 1 m (3 ft) in height every day.
Shipworms are not worms at all, but
weird-looking bivalves with their shells at the front end of their body. Also
called boring clams, Shipworms burrow into and weaken any wooden structure in
the sea. Their handiwork has even sunk Boats!
Some doctors use specially bred blowfly larvae
(maggots) to treat flesh wounds. The maggots clean a wound by eating dead
tissue and harmful bacteria.
If you spot a small, cute octopus with blue
rings in the rock pools of the Australian coast, don’t pick it up. The
blue-ringed octopus is one of the world’s most venomous animals and one bite
could kill you.
Your skin is colored by a brown pigment called
melanin. It protects you by absorbing harmful ultraviolet rays in the sunlight.
It automatically makes more melanin and gives you a sun tan. But you should
always protect it from excessive sunlight by covering up and applying
sunscreen.
The smallest bone in the body is the stapes or
stirrup bone. Found inside the ear, it is smaller than a grain of rice.
The femur or thighbone is the body’s longest
bone, about a quarter the body’s total length.
The skull is the body’s most complex bone.
Our most complex joint is knee.
In a single drop of water there are 2
sextillion- that’s 2,000,000,000,000,000,000,000(2 followed by 21 zeroes)
oxygen atoms and twice the number of hydrogen atoms.
A human hair is about 1 million atoms wide. You
have around 100,000 hairs on your head.
Sand grains are made of two kinds of atom-
oxygen and silicon. Humans are made of about 28 different kinds of atoms.
To steer a bike you turn the handle-bars to turn
the front wheel, yes! Think again! The handlebars are more to help you balance.
To turn left, you turn the handlebars very right, and then tip your body to the
left. This is called counter steering, and you do it automatically.
Silver has antibacterial properties- you can buy
silver-treated socks to control foot odour.
Gold is so soft that people used to bite coins
to check real gold- if they were, they left teeth marks.
A 30-cm (1 ft) cube of osmium weighs 640 kg
(1,410 lb). That’s the same as ten 64 kg (140-lb) adults!
The most expensive car in the world is a Bugatti
Veyron 16.4, produced by Volkswagen; it costs about US $ 1.4 million.
The cheapest car in the world is the nano, made
by Indian Manufacturer Tata. It costs just US $ 2,500.
The
Incan
City of
Machu
Picchu, high in the Andes, is the most visited site in
South America, with more than 400,000 tourists a year.
In the past, the Maluku (Moluccas) Islands in
Indonesia
were the world’s only source of Cloves and Nutmegs. Europeans called the region
the “
Spice Islands.”
With nanotechnology (engineering on a molecular
scale) you can create books smaller than a grain of salt. A book called Teeny
Ted from
turnip Town, made in 2007 at Simon Fraser
University, Canada, measures 0.07*0.1 mm (0.0027*0.0004 in). The only way to
read it is with an electron microscope at 8,000 times magnification.
Harry Potter & the deathly Hallows, the
seventh and last book of the series, sold 11 million copies in 24 hours- an all
time record.
About rishab sharma
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