See more pictures of marine mammals. Sebastien Burel/Dreamstime.com. By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons).
X-rays are produced when electrons strike a metal target. The electrons are liberated from the heated filament and accelerated by a high voltage towards the metal target.The X-rays are produced when the electrons collide with the atoms and nuclei of the metal target.-rays are produced when electrons strike a metal target. The electrons are liberated from the heated filament and accelerated by a high voltage towards the metal target.
An X-ray machine is like a giant camera that allows doctors to see what is going on inside a patient without having to do surgery. To produce an X-ray picture, an X-ray machine produces a very concentrated beam of electrons onto a metal film.The beam travels through the air until it comes in contact with our body tissues. Soft tissue, such as skin and organs, cannot absorb the high-energy rays, and the beam passes through them.o produce an X-ray picture, an X-ray machine produces a very concentrated beam of electrons onto a metal film.