(CNN) — How do you connect to the internet while barreling through the sky at 500 miles per hour? How can you brew hot food and drinks at high altitude? And most important of all, how does a toilet ...

The flush handle is pressed, lifting the flapper, setting in motion about 10 seconds of flushing genius. The lifted flapper releases tank water into the bowl via rim jets and the larger siphon jet.

Waste tanks – where everything that goes down the toilet ends up – are usually located at the back of the plane, and often at the front, too. When you press the flush button, a valve opens at the ...