-
Pencil’s magic
History of pencils The modern pencil was invented in 1975 by Nicholas- Jacques Conte, a scientist serving in the army of Nepolean Bonaparte. The magic material that was so appropriate for the purpose was the form of pure carbon that we call graphite. Graphite came into widespread use following the discovery of a large graphite…
-
QUARTZ
Have you ever heard the word quartz? May be you see quartz in your clocks or in watches. Did you know what is quartz? Quartz is a hard crystalline mineral composed of silicon and oxygen atoms. Its chemical formula is SiO2. Quartz has attracted attention from the earliest times; water-clear Crystal’s were known to the…
-
Invention that changes Transportation in 2020
-
28,000 years long life batteries
A California based company NDB has made a self-charging battery by trapping Carbon-14 (c14) nuclear wastes in artificial diamond- case. The company claims the battery can run up for28,000 years. This is called as Nano diamond batteries. Nuclear waste Nuclear wastes is hazardous for tens of thousands of years. This clearly is unprecendent…