A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Out of all the senses, smell is most closely linked to memory.
146
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Hot water can freeze faster than cold water.
181