The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Sound at the right vibration can bore holes through a solid object.
134
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
One 75-watt bulb gives more light than three 25-watt bulbs.
57
One ragweed plant can release as many as one billion grains of pollen!
51
Iron weighs more after it rusts.
16