Sentence examples for a speed of four from inspiring English sources

Ballast tanks and a system of weights submerged the craft; it could travel at a speed of four miles an hour, powered by eight men cranking its propeller.

The surface currents are chiefly influenced by the blowing winds, with currents spurred by north winds reaching a speed of four miles per hour.

To travel through beautiful scenery at a speed of four horsepower is just marvelous".

On level ground, they were able to travel at a speed of seven metres a minute.

Nothing in the theory allows a light wave to have a speed of zero.

One such deadly and effective system is the so-called hypersonic glide vehicle, which could deliver a nuclear warhead at a speed of seventeen thousand miles per hour.

At 2 57 p.m. Eastern Daylight Time, Galileo will be travelling at a speed of thirty miles per second, and its boxy octagonal frame will start glowing red.

If all of NEAR Shoemaker's rocket firings go as planned to ease it down to the surface, the spacecraft should contact Eros at a speed of two to seven miles an hour, about the pace of a walking human.

In February, the company established a new speed record for soliton transmission when it achieved a speed of one terabit (thousand billion bits) per second over a distance of 1,000km (620 miles).

The result is a drastic increase in drag: When a dolphin is within weeks of giving birth, she will encounter the same amount of water resistance at a speed of about four miles an hour as she normally would at a speed of eight miles an hour, according to Dr. Noren's analysis.

We strung the new mooring out behind the ship, towing it at a speed of one to two knots, until the entire mooring, four kilometers (two and a half miles) long, was stretched out on the surface behind us.