19 November 2008
The first successful method for converting nitrogen
from the atmosphere and combining it with hydrogen to synthesize
ammonia, a valuable compound used as a fertilizer.
The person behind the invention:
Fritz Haber (1868-1934), a German chemist who won the 1918
Nobel Prize in Chemistry
17 November 2008
The nickel-iron alkaline battery was a lightweight,
inexpensive portable power source for vehicles with electric motors.
The people behind the invention:
Thomas Alva Edison (1847-1931), American chemist, inventor,
Henry Ford (1863-1947), American inventor and industrialist
Charles F. Kettering (1876-1958), American engineer and