TCDD (Tetrachloro di-benzo di-oxin), a by-product of a herbicide is extremely toxic. It is 1, 50, 000 times more deadly than a cyanide.
Diamond, a piece of pure carbon, is 80 times as hard as the .next hardest substance corundum (hard mineral of aluminium oxide).
The smallest optical prism was made in scientific laboratory Colorado (USA) and k almost invisible, measuring only 0.01 mm.
Thomas Alva Edison got the maximum number of for his different inventions like, electric lamp, photo cabinet, printing telegraph apparatus, telegraph transmitting instruments and many others. His total numbers of patents were 1093.
Albert Einstein was half German and half Swiss but when Hitler came to power, he moved from Germany to USA. A letter which Einstein wrote to President Roosevelt in 1939, led to the project to create the world's first atomic bomb.
Normally, the blood temperature of the human body is 37°C. Anything above 45°C that touches your skin, hurts. The skin can go numb below 12°C. The knee can tolerate up to 47°C for 30 seconds.
The lowest po5 temperature is at which all the molecules stop moving. It is called absolute zero. The lowest temperature recorded on earth was -89°C.
NASA, USA, reported that bacteria had been discovered even at an altitude of 41,000 m.
The US Library of Congress' 70 million books could be stored in 25 TB (Terabyte or 10-11 bytes) of computer capacity.
Half the atoms in a bit of strontium decay the radioactivity in just 9 minutes. But, in uranium it takes 4.5 billion years.
