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A Tipler cylinder, also called a Tipler time machine, is a hypothetical object theorized to be a potential mode of time travel—although results have shown that a Tipler cylinder could only allow time travel if its length were infinite or with the existence of negative energy.
A Zeno machine is a Turing machine that can take an infinite number of steps, and then continue take more steps. This can be thought of as a supertask where units of time are taken to perform the -th step; thus, the first step takes 0.5 units of time, the second takes 0.25, the third 0.125 and so on, so that after one unit of time, a countably infinite number of steps will have been performed.
The risk continued to drop with more steps, but then plateaued at about 7,500 steps. The optimal step count for people younger than 60, though, was about 8,000 to 10,000 a day, per a separate study.
The second half of the test involved subjects performing a 100-m sprint on a man-made track using radar to measure the forward speed of runners to create velocity-time curves. The main result of this study showed that the force application technique (rather than simply the total amount of force applied) is the key determinant factor in ...
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The 10K run is a long-distance road running competition over a distance of ten kilometres (6.2 miles). Also referred to as the 10K road race, 10 km, or simply 10K, it is one of the most common types of road running event, alongside the shorter 5K and longer half marathon and marathon.
In order to get "road parameters", vehicle must be driving on ideal flat road with no wind from any direction, gear set to neutral and time needed to slow down without braking is measured in certain intervals e.g. 100–90 km/h, 90–80 km/h, 80–70 km/h 70–60 km/h etc. Slowing down from higher speed takes shorter time mainly due to air ...
1:18:35.2 Stefan Johansson Sweden 15 May 1992 Bergen, Norway 20 km walk (road) 1:17:02 Yohann Diniz France 8 March 2015 French Championships Arles, France [51] 1:16:43 [a] Sergey Morozov Russia: 8 June 2008 Saransk, Russia 2 hours walk (track) 29572 m + Maurizio Damilano Italy: 3 October 1992 Cuneo, Italy 30,000 m walk (track) 2:01:44.1 ...