The Japanese started eating three meals a day, rice was boiled instead of steamed, and most important of all, rice vinegar was invented.

Early inventions The invention from which Henry Bessemer made his first fortune was a series of six steam powered machines for making bronze powder, used in the manufacture of gold paint.

The Indian army is using solar steam cooking in Ladakh to cook for the 500 jawans (young army recruits) stationed there, and so is the Shirdi Sai Baba temple in Maharashtra.

One of the materials that can do this is a remarkable material, carbon, that has changed its form in this incredibly beautiful reaction where graphite is blasted by a vapor, and when the vaporized carbon condenses, it condenses back into a different form chickenwire rolled up.