When the weather is dry, an aircraft will need to travel 767 miles per hour to reach the sound barrier. This means that the fastest RC plane would need to increase its speed by over 300 miles per hour in order to break the sound barrier.

1,225 km/h

about 660 mph

The speed of sound is the distance a sound wave travels through an elastic medium. The speed of sound through air at 20 °C is equal to 343 meters per second, or roughly 767 miles per hour.

approximately 770 mph

The non-reusable balloon used by Baumgartner cost $250,000, with the wider cost to the sponsor Red Bull of the whole record attempt estimated to have cost many millions of dollars. This will put off the vast majority of copycats, but the high-profile stunt is expected to provoke a surge in interest for parachuting.

The speed, achieved by the human body in free fall, is a function of several factors; including the body’s mass, orientation, and skin area and texture. In stable, belly-to-earth position, terminal velocity is about 200 km/h (120 mph).

An average human’s hang time is somewhere around 0.53 seconds. In fact, the maximum hang time a normal human being can manage is 1 second – no more than that. Michael Jordan’s longest hang time record – the time when he remained airborne the longest – is 0.92 seconds.

The highest ever recorded was achieved by Justin Bethel of the United States back in 2012, where he achieved 60 inches or 5 feet. Note that this is different from the regular standing vertical jump that’s used during fitness tests and also by the NBA and NFL (see those below).

Ronaldo took to Instagram yesterday to post a vertical jump that totaled 113cm – a height that is greater than what LA Lakers star Kobe Bryant can manage and is the equivalent of LeBron James’ record according to Pro Soccer Talk. Pretty damn impressive.