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In the 1980s and '90s, a push to lower the legal blood alcohol content (BAC) limit for getting behind the wheel took the country by storm. Mothers Against Drunk Driving (MADD) was formed in 1980 ...
Crewed flight with two cosmonauts, first Hungarian in space 28 May 12:00 Soyuz-U Plesetsk Site 41/1 Kosmos 1183 (Zenit-6) Low Earth Optical imaging: 11 June: Successful 29 May 10:53 Atlas E/F-Star-37S-ISS: Vandenberg SLC-3W NOAA-B: NOAA: Low Earth Weather: 3 May 1981: Launch failure First stage underperformed due to an engine leaking fuel and ...
After a lull in the 1970s caused in part by the many experimental difficulties in measuring CMB at high precision, [27]: 8.5.1 increasingly stringent limits on the anisotropy of the cosmic microwave background were set by ground-based experiments during the 1980s.
In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time.In Albert Einstein's 1905 paper, On the Electrodynamics of Moving Bodies, the theory is presented as being based on just two postulates: [p 1] [1] [2]
If approved, Senate Bill 5067 would make Washington the second state to lower its per se blood alcohol concentration, or BAC.) limit for driving, from .08% to .05%. Utah was the first, with its ...
This new class of preferred motions, too, defines a geometry of space and time—in mathematical terms, it is the geodesic motion associated with a specific connection which depends on the gradient of the gravitational potential. Space, in this construction, still has the ordinary Euclidean geometry. However, spacetime as a whole is more ...
The first space rendezvous was accomplished by Gemini 6A and Gemini 7 in 1965.. Records and firsts in spaceflight are broadly divided into crewed and uncrewed categories. Records involving animal spaceflight have also been noted in earlier experimental flights, typically to establish the feasibility of sending humans to outer space.
First space walk/extra-vehicular activity (Alexei Leonov). USSR Voskhod 2: March 1965: First crewed spacecraft to change orbit. USA (NASA) Gemini 3: 14 July 1965: First flyby of Mars (returned pictures). USA (NASA) Mariner 4 [18] 14 July 1965: First photographs of another planet from deep space . USA (NASA) Mariner 4 [18] 26 November 1965