A traffic collision, also known as a motor vehicle collision, or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road...

the relative velocity of separation after collision to the relative velocity of approach before collision. It can also be defined as the square root...

civilian mid-air collisions Peter Nielsen referred to the flight as "Bravo Tango Charlie 2937" instead of the airline callsign. Test run reg: N3502P,...

Collision theory is a principle of chemistry used to predict the rates of chemical reactions. It states that when suitable particles of the reactant hit...

2009. Marks, Paul (February 13, 2009). "Satellite collision 'more powerful than China's ASAT test". New Scientist. Archived from the original on February...

In aviation, a mid-air collision is an accident in which two or more aircraft come into unplanned contact during flight. Owing to the relatively high...

John de Havilland (17 October 1918 – 23 August 1943) was a British test pilot. John and his brothers, Geoffrey de Havilland Jr. and Peter, were sons of...

The Kessler syndrome (also called the Kessler effect, collisional cascading, or ablation cascade), proposed by NASA scientists Donald J. Kessler and Burton...

NTSB test. On July 23, the NTSB announced that the track circuit at the crash site had been malfunctioning since 2007, 18 months prior to the collision, and...

head-on collisions and run-off-road collisions. Collisions at junctions, including rear-end collision and angle or side impacts. Collisions involving...

park, killing both occupants. The first aircraft involved in the collision was a De Havilland Canada Dash 8-315 (model DHC-8-315), manufacturer serial...

live moose) is used to simulate realistic moose collisions. Australian car manufacturers use crash test kangaroo dummies for similar reasons. In a 2008...

heavy ions, such as in lead–lead collisions and proton–lead collisions. The LHC's goal is to allow physicists to test the predictions of different theories...

cryptography, a collision attack on a cryptographic hash tries to find two inputs producing the same hash value, i.e. a hash collision. This is in contrast...

There is evidence in other star systems of similar collisions, resulting in debris discs. Giant collisions are consistent with the leading theory of the formation...

Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects (NEOs). It...

conditions. Prost conducted testing at Circuit de Catalunya and performed tyre testing for Bridgestone, as well as testing their 1998-specification car...

debut. Kevin Magnussen of Haas received two penalty points for causing a collision at the Italian Grand Prix, taking his total to twelve penalty points in...

traffic collisions (2000–present). 1771 – France – Nicolas-Joseph Cugnot's second steam-powered vehicle is said to have crashed into a wall during a test run...

Bird–window collisions (also known as bird strikes after the aviation term or as window strikes) are a problem in both low- and high-density areas worldwide...

A traffic alert and collision avoidance system (TCAS, pronounced /tiːkæs/; TEE-kas) is an aircraft collision avoidance system designed to reduce the incidence...

vehicle for the test, they must show proof of liability insurance to the DMV for the particular vehicle to avoid liability from a collision that could occur...

resultant velocity in a collision between a bird and an aircraft. The FAA do not specify the species of bird that should be used for testing, but do state that...

Mercedes W14 for a Pirelli tyre test at the Circuit de Barcelona-Catalunya. On 5 July, he drove the McLaren MCL35M in testing at Portimão. Schumacher continued...

February 2017, CWI Amsterdam and Google announced they had performed a collision attack against SHA-1, publishing two dissimilar PDF files which produced...

and John. Two of the sons died as test pilots in de Havilland aircraft. His youngest son, John, died in an air collision involving two Mosquitoes in 1943...

300 and 1,100 km (190 and 680 mi) above Earth. The threat of potential collision with debris caused the crew of the International Space Station (ISS) to...

French racing cyclist, traffic collision. Rupert Keegan, 69, English racing driver (Formula One, CART). Hadelin de La Tour du Pin, 73, French diplomat...

Australian Grand Prix, but retired from the Bahrain Grand Prix due to a collision with Sergio Pérez. After the Russian Grand Prix, Sainz gained a new teammate...

In mechanics, an impact is when two bodies collide. During this collision, both bodies decelerate. The deceleration causes a high force or shock, applied...