United Airlines Finds Way to Cut Costs That Doesn't Involve Booting Overbooked Passengers

Switching its in-flight magazine Hemisphere to a lighter variety of paper that saved an ounce a copy has saved United Airlines 170,000 gallons of fuel a year, the L.A. Times reported on Saturday, citing an “internal message to employees.” Per the paper, the 11 fewer pounds a flight save approximately 170,000 gallons…

Incredible Slo-Mo Footage Reveals Hummingbirds Are Truly Nature's Fighter Jets

Most birds get all the lift they need to fly with the downward stroke of their wings—meaning there’s no upward force being produced as they raise them back up. Hummingbirds, on the other hand, produce lift with both their upward and downward wing strokes, creating air vortices that the tiny birds use to fly with…

The Shape of a Bird’s Egg Can Tell You Something Totally Unexpected

Some of life’s simplest questions get swept under the rug for a long time—after all, the most widespread phenomena often require the most data to understand. Take the shape of the boring egg, for example. You probably thought eggs are was shaped the way they are so they won’t roll out of the nest or something. But a…