And so you get desertification creeping, creeping, creeping as the last of the trees are cut down.

There are smaller animals crawling around.

He felt something crawl up his leg.

I felt something crawling on my back.

Acoels are almost entirely marine, living between grains of sediment, swimming as plankton, or crawling on algae.

The vehicle, called the ThrustSSC ( Super Sonic Car ), captured the record 50 years and one day after Yeager's first supersonic flight.

Here we see a female crawling out of the ocean under moonlight on the island of Trinidad.

Speed and death.

Globalisation is the speed of light.

formula_19where formula_20 is the transverse velocity formula_21 is the radial velocity.

However, the speed of sound varies from substance to substance.

In particular, the speed of light in a medium is less than in vacuum, which means that the same frequency will correspond to a shorter wavelength in the medium than in vacuum, as shown in the figure at right.

Average velocity can be calculated as formula_1The average velocity is always less than or equal to the average speed of an object.

So this is slowed down.

So here is normal speed.

Narrator Do you have a need for speed?

Speed isn't everything.

The decrease of the sound speed with height is referred to as a negative sound speed gradient.

In the Southern Hemisphere, the water is transported to the left of the wind.

Therefore, the speed of travel around the orbit is formula_57,where the angular rate of rotation is ω.

In fluid dynamics, Mach number (M or Ma) ( ) is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.

And the delta has alligators crawling in and out of rivers filled with fish and cypress trees dripping with snakes, birds of every flavor.

The complementary particle types are called luxon (always moving at the speed of light) and bradyon (always moving slower than light), which both exist.

the average speed as it completes an orbit, or the speed at a particular point in its orbit.

Angular frequency (or angular speed) is the magnitude of the vector quantity angular velocity .

I always drive at a moderate speed.

The train gained speed gradually.

The train gained speed gradually.

There's no speed limit.

Respect the speed limits!

Respect the speed limits!

The type of explosives used in mining are high explosives which vary in composition and performance properties.

Operations Network System characteristics The trains are supplied by 3000 V DC overhead wires, and have a commercial speed of 40 km h with a maximum speed of 80 km h.

The high speed was 16 kilocycles.

And this began to get a head of steam.

So, the challenge is full speed ahead.

I always drive at a moderate speed.

He finished it as quick as lightning.

He ran at full speed.

The train gained speed gradually.

The car slowly gathered speed.

Don't exceed the speed limit.

Velocity and speed The velocity of a particle is a vector that tells about the direction and magnitude of the rate of change of the position vector, that is, how the position of a point changes with each instant of time.

Even though angular velocity, angular frequency and the unit hertz all have the dimension 1 s (reciprocal second), angular velocity and angular frequency are not expressed in hertz, but rather in an appropriate angular unit such as radians per second.

People who had been sleeping on the floor gathered around it, and I too followed, crawling out of the blanket in which I was bundled up.