Fractal Softworks Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Starsector 0.97a is out! (02/02/24); New blog post: Simulator Enhancements (03/13/24)

Pages: 1 [2]

Author Topic: Space Fizzix  (Read 11464 times)

naufrago

  • Admiral
  • *****
  • Posts: 511
    • View Profile
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
Logged

GUNINANRUNIN

  • Admiral
  • *****
  • Posts: 719
  • Let's do it!
    • View Profile
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?
Logged
In short, if you throw a stone out of the rear window of your spaceship you will go faster.

Aleskander

  • Captain
  • ****
  • Posts: 397
    • View Profile
Re: Space Fizzix
« Reply #17 on: October 19, 2012, 01:12:40 PM »

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

Corsair

  • Ensign
  • *
  • Posts: 1
    • View Profile
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.
Logged

blamatron

  • Ensign
  • *
  • Posts: 24
    • View Profile
Re: Space Fizzix
« Reply #19 on: October 19, 2012, 07:19:57 PM »

What if you ejected all those stones at the same time?
Logged
Pages: 1 [2]