Now here's a brilliant invention. This "world's first intelligent coffee mug" manages to keep your coffee at the perfect temperature for 30 minutes. It won't cool down and provide you with a gross, lukewarm sip if you leave it for a bit. Nope, it keeps things just perfect.
It does this by using a wax-like substance between the walls of a porcelain mug. It absorbs and stores the warmth emitted by the initially-hot coffee and uses it to keep a constant temperature for longer. How awesome is that? I can't wait until this thing leaves the lab and becomes ready for sale.