As velocities approach the speed of light the mass starts to increase, thus requiring more energy to continue to accelerate the object.

Though largely landbound, the Jet body was capable of forward velocity approaching four hundred miles an hour.

The velocities of the electrons approach the speed of light, and special relativity must be taken into account.

However, as an object's velocity approaches the speed of light, its mass approaches infinity.

At 11:49 he said: "Our velocity is approaching zero.

All three models predicted an increase of the electron mass if their velocities are approaching the speed of light.

They had a speed of revolution in the near neighborhood of 60,000 r.p.m., and a velocity at the circumference approaching two miles a second.

Is there a maximum temperature that objects can attain so that molecules reach a velocity approaching the speed of light?

Figure 20 shows the case of a truck moving with velocity 'v' approaching an downstream location with capacity 'μ'.

For almost 2 weeks, the supernova radiates more energy than a billion Suns and ejects matter at velocities approaching the velocity of light.