Do you want to dig up a T-Rex? -
Why didn't anyone tell me excavation kits are a thing?
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Sunday, 11 June 2017
quote [ This is a Fb livestream filmed by a friend at the demonstration in its entirety. It begins with me being interviewed by a local reporter and that video will be linked once the story airs. ]
26ft torsional pendulum
50lb machine 50lb counterweight powered by two Harbor Freight angle grinders speed-controlled with dimmer switches. Harbor Freight "waterfall pump" for circulation. Wheels made from cheap aluminum cook pots. Valves made from swamp-cooler float valves. Anyone with a lathe should be able to build a version capable of flight. Enjoy.
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kylemcbitch said @ 9:49pm GMT on 12th June
Indeed, but that's not what you said:
"Conservation of Momentum only applies to closed systems."
Wrong.
Conservation of Angular Momentum when applied to both closed and open system:
1)Closed system - A closed system does not interact with its environment so there is no net
external impulse. The total momentum of a closed system is conserved. That is, the total
momentum of the system remains constant.
2) Open system - An open system interacts with its environment, so that it can exchange
both energy and momentum with the environment. For an open system the change in the
total momentum is equal to the net impulse added from the environment–from objects
outside the system.
In both cases, the law applies. Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta.
kylemcbitch said @ 9:52pm GMT on 12th June
Indeed, but that's not what you said:
"Conservation of Momentum only applies to closed systems."
Wrong.
Conservation of Angular Momentum when applied to both closed and open system:
1)Closed system - A closed system does not interact with its environment so there is no net
external impulse. The total momentum of a closed system is conserved. That is, the total
momentum of the system remains constant.
2) Open system - An open system interacts with its environment, so that it can exchange
both energy and momentum with the environment. For an open system the change in the
total momentum is equal to the net impulse added from the environment–from objects
outside the system.
In both cases, the law applies. Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta. The rate of change of the angular momentum of an open system is equal to the torque of the applied.
kylemcbitch said @ 9:58pm GMT on 12th June
Indeed, but that's not what you said:
"Conservation of Momentum only applies to closed systems."
Wrong.
Conservation of Angular Momentum when applied to both closed and open system:
1)Closed system - A closed system does not interact with its environment so there is no net
external impulse. The total momentum of a closed system is conserved. That is, the total
momentum of the system remains constant.
2) Open system - An open system interacts with its environment, so that it can exchange
both energy and momentum with the environment. For an open system the change in the
total momentum is equal to the net impulse added from the environment–from objects
outside the system.
In both cases, the law applies. Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta. The rate of change of the angular momentum of an open system is equal to the torque of the applied.
http://nptel.ac.in/courses/105106049/lecnotes/mainch5.html
kylemcbitch said @ 9:59pm GMT on 12th June
Indeed, but that's not what you said:
"Conservation of Momentum only applies to closed systems."
Wrong.
Conservation of Angular Momentum when applied to both closed and open system:
1)Closed system - A closed system does not interact with its environment so there is no net
external impulse. The total momentum of a closed system is conserved. That is, the total
momentum of the system remains constant.
2) Open system - An open system interacts with its environment, so that it can exchange
both energy and momentum with the environment. For an open system the change in the
total momentum is equal to the net impulse added from the environment–from objects
outside the system.
In both cases, the law applies. Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta. The rate of change of the angular momentum of an open system is equal to the torque of the applied.
http://nptel.ac.in/courses/105106049/lecnotes/mainch5.html
So, how do you plan to apply continually higher amounts of torque?
<-- Entry / Current Comment
kylemcbitch said @ 9:49pm GMT on 12th June
Indeed, but that's not what you said:
"Conservation of Momentum only applies to closed systems."
Wrong.
Conservation of Angular Momentum when applied to both closed and open system:
1)Closed system - A closed system does not interact with its environment so there is no net
external impulse. The total momentum of a closed system is conserved. That is, the total
momentum of the system remains constant.
2) Open system - An open system interacts with its environment, so that it can exchange
both energy and momentum with the environment. For an open system the change in the
total momentum is equal to the net impulse added from the environment–from objects
outside the system.
In both cases, the law applies. Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta. The rate of change of the angular momentum of an open system is equal to the torque of the applied.
http://nptel.ac.in/courses/105106049/lecnotes/mainch5.html
So, how do you plan to apply continually higher amounts of torque?
It travels approximately 45ft in seven minutes.