Iron weighs more after it rusts.
68
Out of all the senses, smell is most closely linked to memory.
146
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16
Most dust particles in your house are made from dead skin!
67
A ball of glass will bounce higher than a ball made of rubber.
73