Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Whale oil was used in automobile transmissions as late as 1973.
56
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
More than a billion transistors are manufactured every second.
-25
A toaster uses almost half as much energy as a full-sized oven.
33
Sony researchers have developed a refrigerator that only opens when you smile.
9
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7