Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
Sunflowers can be used to clean up radioactive waste.
17
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
In Dubai, there’s a fridge magnet that orders a pizza delivered to your door.
12
It's impossible to kill yourself by holding your breath.
22
No matter its size or thickness, no piece of paper can be folded in half more than 8 times.
-64
20252 is Smokey the Bear's own zip code.
35
An iceberg contains more heat than a lit match.
73