The cigarette lighter was invented before the match.
210
Energy is being wasted if a toaster is left plugged in after use.
21
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Mico headphones read your brainwaves and select music based on your state of mind.
7
There’s an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4