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If Our Most Aerodynamic Jets Can Go ~2,000mph, How Does a Rocket Go 25,000mph for Escape Velocity

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posted on Dec, 3 2023 @ 02:09 PM
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It only takes 18000 mph to orbit Earth. It takes 24000 mph to get out to the Moon or beyond.
The atmosphere is very close to the ground when the pressure is a problem. Watch a space shuttle launch. The part where they throttle down until go for throttle up is the most dynamic load on the vehicle. If they stayed at full throttle in that time, it would break up from air drag.

An air plane has to stay down below 50000 feet to have enough air to produce lift. Most cruse between 30 to 40 thousand feet.



posted on Dec, 3 2023 @ 07:22 PM
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a reply to: BeyondKnowledge3

One does not need to reach escape velocity to get to moon as moon is still within gravitational sphere of the earth it takes about 96 % of escape velocity to reach moon In addition moon has its substantial gravity which at a point would pull the object in


Escape velocity is determined by the mass of the body on small asteroids is possible to reach escape velocity by simply
jumping

First object to reach earth escape velocity was 1957 = couple of metal pellets launched by an explosive charge from a Aerobe sounding rocket




But on October 16, 1957, just 12 days after Sputnik, the plan finally succeeded. Lofted to 54 miles aboard an Aerobee sounding rocket, the Penolite charges detonated, propelling two pellet-sized probes beyond the pull of Earth’s gravity and into space. Harvard’s Super-Schmidt Meteor Camera recorded the triumphant moment. “I am certain they escaped,” Zwicky rejoiced, “and are now circling a long ellipse, around the sun.”


During a nuclear test in 1957 during an underground test a steel cover over an instrument shaft supposedly reached escape velocity




During the Pascal-B nuclear test,[8] of August 1957, a 900-kilogram (2,000 lb) steel plate cap (a piece of armor plate) was welded over the borehole to contain the nuclear blast even though Brownlee predicted it would not work. When Pascal-B was detonated, the blast went straight up the test shaft, launching the cap into the atmosphere at a speed of more than 66 km/s (41 mi/s; 240,000 km/h; 150,000 mph). The plate was never found. Scientists believe compression heating caused the cap to vaporize as it sped through the atmosphere. A high-speed camera, which took one frame per millisecond, was focused on the borehole because studying the velocity of the plate was deemed scientifically interesting. After the detonation, the plate appeared in only one frame, but this was enough to make an estimation of its speed. Dr. Brownlee joked the best estimate of the cover's speed from the photographic evidence was it was "going like a bat!".[10] Brownlee estimated that the explosion, combined with the specific design of the shaft, could accelerate the plate to approximately six times Earth's escape velocity. Later calculations made during 2019 (although the result cannot be confirmed) are strongly in favor of vaporization.




edit on 3-12-2023 by firerescue because: (no reason given)

edit on 3-12-2023 by firerescue because: (no reason given)



posted on Dec, 4 2023 @ 04:18 AM
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originally posted by: zaderamsesholloway
It seems that to go fast in this universe, you follow the key notion of making planes smaller and more aerodynamic to go faster. If the Lockheed Blackbird is the peak of this process and can only go ~2,000mph, how does a less aerodynamic and bulky rocket ship go 25,000mph to achieve escape velocity without being destroyed by external forces?


Our public education system folks...



 
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