World's fastest things

The fastest land animal in the world, the cheetah is a marvel of evolution. Capable of running up to 70 miles per hour, the cheetah’s slender, long-legged body is built for speed. Its spotted coat, small head and ears, and distinctive “tear stripes” from the corner of the eyes down the sides of the nose make the cheetah highly recognizable among the large cats of Africa. 

Fastest Computer Roadrunner is a supercomputer built by IBM at the Los Alamos National Laboratory in New Mexico, USA. Currently the world’s fastest computer, the US$133-million Roadrunner is designed for a peak performance of 1.7 petaflops (1 petaflop = over 10^15/1,000,000,000,000,000/ 1 quadrillion calculations per second!), achieving 1.026 on May 25, 2008, and to be the world’s first TOP500 Linpack sustained 1.0 petaflops system. It is a one-of-a-kind supercomputer, built from off the shelf parts, with many novel design features.

Fastest Manned Plane The North American X-15 rocket-powered aircraft was part of the X-series of experimental aircraft, initiated with the Bell X-1, that were made for the USAF, NASA, and the USN. The X-15 set speed and altitude records in the early 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. It currently holds the world record for the fastest speed ever reached by a manned aircraft. During the X-15 program, 13 of the flights (by eight pilots) met the USAF spaceflight criteria by exceeding the altitude of 50 miles (80.47 km. 264,000ft.), thus qualifying the pilots for astronaut status; some pilots also qualified for NASA astronaut wings. Its fastest speed recorded is 4,519 mph (7,273 km/h) while manned by pilot Pete Knight.

 Fastest Helicopter Keep in mind that the maximum speed a rotor helicopter can reach, in theory, before spinning out of control is just over 250 miles per hour. Now that you know that, at an European air show on August 6, 1986 a Westland Lynx ZB500, that was slightly modified, reached a speed of 249.1 miles per hour or 400.8 km/h, making it the world’s fastest helicopter.

Superluminosity Tachyons are a putative class of particles which able to travel faster than the speed of light. Tachyons were first proposed by physicist Arnold Sommerfeld, and named by Gerald Feinberg. The word tachyon derives from the Greek tachus, meaning “speedy.” Tachyons have the strange properties that, when they lose energy, they gain speed. Consequently, when tachyons gain energy, they slow down. The slowest speed possible for tachyons is the speed of light.