Galaxies on Instagram: "In a vacuum, all objects, regardless of their mass, fall at the same speed due to the absence of air resistance. This phenomenon is explained by Galileo’s principle of equivalence, which states that the acceleration due to gravity is the same for all objects. Hence, a bowling ball and a feather will fall at the same rate in a vacuum. On planets with no atmosphere, such as Mercury, the same principle applies. Without atmospheric drag, the bowling ball and the feather exper

technologia on Instagram: "rocket designed in 1962 by engineer Robert Truax while working at Aerojet. The vehicle was planned as a two stage rocket launched from the ocean rather than a land pad. It measured 150 m in length and 23 m in diameter which made it larger than any rocket ever built. The design relied on seawater ballast and pressure fed engines to reduce cost and complexity. The rocket was meant to float upright before launch and ignite directly from the sea surface. NASA and Todd Ship