NASA veteran’s propellantless propulsion drive that physics says shouldn’t work just produced enough thrust to overcome earth’s gravity
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The Debrief[^]:
Dr. Charles Buhler, a NASA engineer and the co-founder of Exodus Propulsion Technologies, has revealed that his company’s propellantless propulsion drive, which appears to defy the known laws of physics, has produced enough thrust to counteract Earth’s gravity.
He'd show it, but uh, it flew away!
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The Debrief[^]:
Dr. Charles Buhler, a NASA engineer and the co-founder of Exodus Propulsion Technologies, has revealed that his company’s propellantless propulsion drive, which appears to defy the known laws of physics, has produced enough thrust to counteract Earth’s gravity.
He'd show it, but uh, it flew away!
Kent Sharkey wrote:
which appears to defy the known laws of physics
people a couple of decades back wouldn't think some actual things were going to be possible.
M.D.V. ;) If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about? Help me to understand what I'm saying, and I'll explain it better to you Rating helpful answers is nice, but saying thanks can be even nicer.
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The Debrief[^]:
Dr. Charles Buhler, a NASA engineer and the co-founder of Exodus Propulsion Technologies, has revealed that his company’s propellantless propulsion drive, which appears to defy the known laws of physics, has produced enough thrust to counteract Earth’s gravity.
He'd show it, but uh, it flew away!
Until he puts it on a rocket that launches from the planet into orbit, I'm not going to hold my breath. We do know there is an anomalous force applied to probes doing gravity slings. They tend to come out faster than expected. However, this isn't the same amount of thrust that is needed to get off the ground.
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The Debrief[^]:
Dr. Charles Buhler, a NASA engineer and the co-founder of Exodus Propulsion Technologies, has revealed that his company’s propellantless propulsion drive, which appears to defy the known laws of physics, has produced enough thrust to counteract Earth’s gravity.
He'd show it, but uh, it flew away!
Sounds pretty cool. There's been some big news covered (here I think) about the advances people are making in materials science especially as concerns "localized magnetism" because I can't think of what they actually called it. You guys realize what it almost definitely means? That's right. Hoverboards are coming.
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Sounds pretty cool. There's been some big news covered (here I think) about the advances people are making in materials science especially as concerns "localized magnetism" because I can't think of what they actually called it. You guys realize what it almost definitely means? That's right. Hoverboards are coming.
jochance wrote:
Hoverboards are coming.
Along with lots of hospitalizations.
"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle
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Until he puts it on a rocket that launches from the planet into orbit, I'm not going to hold my breath. We do know there is an anomalous force applied to probes doing gravity slings. They tend to come out faster than expected. However, this isn't the same amount of thrust that is needed to get off the ground.
obermd wrote:
We do know there is an anomalous force applied to probes doing gravity slings.
Not quite. A "gravity sling" works by energy/momentum transfer. The spacecraft (+propellant) drops into the gravitational well of the planet, gaining kinetic energy at the expense of potential energy. The propellant is burnt close to the planet, leaving it close to the planet. This has the effect of transferring to the spacecraft both the momentum gained due to falling into the gravitational well and the momentum gained due to the burning of the propellant. Handled correctly, this will result in an increase is the spacecraft's speed over and above what it would get from just burning the propellant. The momentum that the spacecraft picks up is not free; it comes from the momentum of the planet in its orbit. However, as the spacecraft is mauch smaller than the planet, the effect on the planet's orbit isn't measurable.
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