When it comes to upper pecs, the study found that the incline bench is just slightly more effective than the flat or decline bench. The study also tested grips, and found that a narrower grip (just beyond shoulder width) combined with an incline bench press is the best for those upper pecs.
You are currently converting speed units from speed of light to miles per hour. 1 c = 670616629.3844 mph. speed of light. c. miles per hour. 670616629.3844 mph.
This is what Wikipedia says he topped 27.79 mph. The fastest human footspeed on record is 44.72 km/h (27.79 mph), seen during a 100 meters sprint (average speed between the 60th and the 80th meter) by Usain Bolt. Maximum human sprint speed is strikingly slower than that of many animals. This article is off by almost 4mph.