The life boat was patented in 1845!
29
Any modern jet is capable of breaking the sound barrier.
34
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2
Energy is being wasted if a toaster is left plugged in after use.
21
More than a billion transistors are manufactured every second.
-25
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60