1 . Jupiter has 79 moons. The largest is Ganymede.
2 . Astronomers thought that there is another planet between sun and mercury called Vulcan. People still search for it. Try out.
3 . Stegosaurus never saw Tyrannosaurs. They were already extinct 80 million years ago when Tyrannosaurs appeared on earth.
4 . There is another form of water called heavy water which formula is D2O. It is slightly heavier than normal water, blue and not drinkable.
5 . The average temperature of universe is 2.73 K (-270°C). The universe was super hot but it has cooled to such a level.
6 . If you put Saturn on water it will float. Saturn is made of gas and is lighter than water.
7 . Gravity on moon is 1/6 of earth. So if you weight 60 kg on earth , you will weight 10 kg on moon.
8 . If you add 250 ml of alcohol and 250 ml of water, the resultant mix will be 480 ml. It is because of close bonding between water and ethanol molecules.
9 . Liquid air is blue. It is because it contains oxygen.
10 . If you put spoonful of water in a bucket of water it will get dissolved like salt. Confused? Ask in comment. Chemist knows the reason.
11 . There is a formula to calculate number of alien species in the universe. In one estimation the number came out as 17,000.
12 . Worlds smallest flower is Wolffia Globosa.
13 . Fruit bats have good sense of smell and eye sight. They don't need echo location.
14 . Colour blindness is an X linked defect where people cannot differentiate between colours. Only males are affected. Females don't actually get affected by it.
15 . The apple and feather will fall on ground at the same time if dropped from the same height. Confused? look at comments for explanation.
16 . If you want to reach a maximum distance while throwing an object, 45° is the best.
17 . Is there living proof of evolution?Look at Glass lizard. Once it had walking legs, now these are vestigial organs or useless.
18 . Time slows down near pyramid due to its heavy mass. Theoretically if you are near the pyramid, people will seem to be moving faster who are far from the pyramids.
19 . According to a theory the sum of natural numbers is -1/12 i.e
1+2+3+4+5+…………infinite = -1/12.
20 . There is also a concept of liquid telescope. Here mercury is rotated in a constant angular speed in a container. The mercury attain the shape of parabola and reflects light by some 80%.
21 . Window panes/glass is actually liquid. they flow like water our fluids.
22 . How much DNA we share with other organisms.
- 98% chimpanzee.
- 90% mouse.
- 80% dogs.
- 70% slug.
- 60% chicken
- 50% fruit-fly.
- 40% apple.
- 20% plants.
- 10% e coli bacteria.
23 . Till you read this answer, earth already traveled 900 kms.