When did the elephant bird become extinct?

When did the elephant bird become extinct?

Madagascar’s giant, flightless elephant birds were once a common sight on the island, certainly up until the 17th century. It is generally believed that the elephant bird’s extinction resulted from human activity, perhaps not surprising when one of their giant eggs would have fed an entire family.

Is it possible to fire a gun in space?

Fires can’t burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required.

What does a grip do on a film set?

They constitute their own department on a film set and are directed by a key grip. Grips have two main functions. The first is to work closely with the camera department to provide camera support, especially if the camera is mounted to a dolly, crane, or in an unusual position, such as the top of a ladder.

How much pizza do Americans consume in a day?

Americans on average eat enough pizza to span 18 acres every day. In a week that would be 126 acres of pizza.

When was bread first made?

c. 8000 BC. At first grain was crushed by hand with pestle and mortar. In Egypt a simple grinding stone (quern) was developed. All bread was unleavened, there were no raising agents and bread was made from a mixed variety of grains.

Who were the Bedouin tribes?

Bedouin, also spelled Beduin, Arabic Badawi, plural Badw, Arabic-speaking nomadic peoples of the Middle Eastern deserts, especially of North Africa, the Arabian Peninsula, Egypt, Israel, Iraq, Syria, and Jordan.

How many miles is it from Earth to Neptune?

When Neptune and Earth line up on the same side of the sun, at their closest, they are only 2.7 billion miles (4.3 billon kilometers) apart. But when the planets are on opposite sides of the sun, they can put as many as 2.9 billion miles (4.7 billion km) between them.

What causes a jet stream from a plane?

These trails are actually called contrails, short for “condensation trails”. They are not smoke from the engines, they are formed when the water in jet exhaust (and there’s quite a lot of it, like car exhaust on a cold day) mixes with wet cold air, and condenses and freezes into ice crystals.