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Author Topic: Space Fizzix  (Read 8852 times)

naufrago

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Re: Space Fizzix
« Reply #15 on: October 19, 2012, 12:38:31 PM »

:D What have I started?  Now, to end it:

Weight of a small ship: 5,000,000 kg
Weight of a Stone: 0.5 kg
Acceleration by human throwing: 50 m/s²  (roughly estimated)
Frequency 1 stone/second

Force of a stone: 0,5 * 50 = 25 N
Acceleration of the ship by one throw: 25N/5,000,000 kg = 5x10^-6 m/s² = 0.000005 m/s²

Distance between planets by example of earth-mars: 3x10^8 km

Time it would take to bridge that distance using the stone-drive: 6.9*10^7s = 2.2 years (assuming atmospheric deceleration)

Except for possible sore arms quite reasonable, eh?

Well....
Necessary amount of stones in the cargo hold: 6.9*10^7 = 70 million
Weight that has to be  swept under the carpet: 34,500,000 kg

Solution: place portal under carpet. All is perfect! ;D


When the weight of the 'fuel' is around 14x the weight of the ship, it's probably not a good engine. =p Also, the food, water, and oxygen you'd need to store for 2+ years would add a non-trivial amount of weight as well.

Color me pessimistic, but I doubt it'll catch on. =p
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GUNINANRUNIN

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Re: Space Fizzix
« Reply #16 on: October 19, 2012, 12:44:38 PM »

:D What have I started?  Now, to end it:

Weight of a small ship: 5,000,000 kg
Weight of a Stone: 0.5 kg
Acceleration by human throwing: 50 m/s²  (roughly estimated)
Frequency 1 stone/second

Force of a stone: 0,5 * 50 = 25 N
Acceleration of the ship by one throw: 25N/5,000,000 kg = 5x10^-6 m/s² = 0.000005 m/s²

Distance between planets by example of earth-mars: 3x10^8 km

Time it would take to bridge that distance using the stone-drive: 6.9*10^7s = 2.2 years (assuming atmospheric deceleration)

Except for possible sore arms quite reasonable, eh?

Well....
Necessary amount of stones in the cargo hold: 6.9*10^7 = 70 million
Weight that has to be  swept under the carpet: 34,500,000 kg

Solution: place portal under carpet. All is perfect! ;D


When the weight of the 'fuel' is around 14x the weight of the ship, it's probably not a good engine. =p Also, the food, water, and oxygen you'd need to store for 2+ years would add a non-trivial amount of weight as well.

Color me pessimistic, but I doubt it'll catch on. =p
Wait, how many people are throwing stones?
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In short, if you throw a stone out of the rear window of your spaceship you will go faster.

Aleskander

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Re: Space Fizzix
« Reply #17 on: October 19, 2012, 01:12:40 PM »

Are you using the MK 1 version or the MK 2?
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Corsair

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Re: Space Fizzix
« Reply #18 on: October 19, 2012, 06:51:53 PM »

:D What have I started?  Now, to end it:

Weight of a small ship: 5,000,000 kg
Weight of a Stone: 0.5 kg
Acceleration by human throwing: 50 m/s²  (roughly estimated)
Frequency 1 stone/second

Force of a stone: 0,5 * 50 = 25 N
Acceleration of the ship by one throw: 25N/5,000,000 kg = 5x10^-6 m/s² = 0.000005 m/s²

Distance between planets by example of earth-mars: 3x10^8 km

Time it would take to bridge that distance using the stone-drive: 6.9*10^7s = 2.2 years (assuming atmospheric deceleration)

Except for possible sore arms quite reasonable, eh?

Well....
Necessary amount of stones in the cargo hold: 6.9*10^7 = 70 million
Weight that has to be  swept under the carpet: 34,500,000 kg

Solution: place portal under carpet. All is perfect! ;D


When the weight of the 'fuel' is around 14x the weight of the ship, it's probably not a good engine. =p Also, the food, water, and oxygen you'd need to store for 2+ years would add a non-trivial amount of weight as well.

Color me pessimistic, but I doubt it'll catch on. =p
Obviously the solution is to make the ship your fuel.
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blamatron

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Re: Space Fizzix
« Reply #19 on: October 19, 2012, 07:19:57 PM »

What if you ejected all those stones at the same time?
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