What is the fastest speed on earth?
What is the fastest speed on earth? The Outright Land Speed Record, which currently stands at 763.035 mph(1227.985 km/h), is the most prestigious, but there are hundreds of other records in myriad classes based on factors such as engine type and capacity, weight or body shape.
How fast is Usain Bolt?
In 2011 Belgian scientists used lasers to measure Bolt's performance in the different stages of a 100-meter race held in September that year. They found that, 67.13 meters into the race, Bolt reached a top speed of 43.99 kilometers per hour (27.33 miles per hour).
What is the speed of dark?
Most of us already know that darkness is the absence of light, and that light travelsat the fastest speed possible for a physical object. So, what does this mean? In short, it means that, the moment that light leaves, darkness returns. In this respect,darkness has the same speed as light.