Indoor pollution is 10 times more toxic than outdoor pollution.
62
Out of all the senses, smell is most closely linked to memory.
146
The bark of an older redwood tree is fireproof.
65
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Liquid TIDE laundry detergent glows under a blacklight.
96
Sound travels fifteen times faster through steel than through air.
134
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
