Who holds a World Land Speed Record and named Daniel Jubb "one of the world's leading rocket scientists"?
Daniel Jubb Daniel Jubb (born 1984 in Manchester, England) is a British rocket scientist. In a 17 November 2008 article from the British newspaper "The Times", he was named "one of the world's leading rocket scientists", by the Royal Air Force Wing Commander Andy Green.
Gravity of Earth The gravity of Earth, which is denoted by g , refers to the acceleration that is imparted to objects due to the distribution of mass within the Earth. In SI units this acceleration is measured in metres per second squared (in symbols, m/s or m·s) or equivalently in newtons per kilogram (N/kg or N·kg). Near the Earth's surface, gravitational acceleration is approximately 9.8 m/s, which means that, ignoring the effects of air resistance, the speed of an object falling freely will increase by about 9.8 m per second every second. This quantity is sometimes referred to informally as "little g " (in contrast, the gravitational constant G is referred to as "big G ").