The Week In Numbers: Overdosing On Caffeine, A Folding Bike Helmet, And More

SolePower

Illustration by Lucas Nene/Sole Power

15 miles: the distance you must walk to charge your smartphone using a new shoe insole that stores energy from footsteps as electricity

322 body lengths in a second: the speed of the world's fastest land animal, relative to size

57.14 cups of regular brewed coffee: the amount of caffeine it would take to kill our intern

132 people: have been sickened in a recent Salmonella outbreak linked to pet bearded dragons

A bearded dragon

André Karwath via Wikimedia Commons

50,000 gallons: the amount of crude oil that is "missing" after a train derailment in Lynchburg, Virginia

The James River on fire, April 30, 2014.

Image captured shortly after several rail tankers of crude oil derailed in Lynchburg, Virginia, on April 30, 2014. Flames are spreading onto the surface of the river, suggesting that oil is spilling into the river.

Upper James RIVERKEEPER/James River Association

$8.3 million: the cost to develop a cryogenic engine powered by heat 

1.4 inches thick: the collapsed size of this folding bicycle helmet (see all of our 2014 Invention Award winners here)

Morpher

Photograph by Ralph Smith

50 percent: the portion of Illinois residents who would live anywhere else if they could

3: the number of ice layers that may be in the "club sandwich"-like ocean of Jupiter's moon Ganymede

Overall Winner: Jupiter with lo and Ganymede

Damian Peach's awesome detail on two of Jupiter's moons in this photo taken from Barbados clinched him the overall win.

Damian Peach