Can Nuclear Fission and Fusion Power a Bicycle?

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Discussion Overview

The discussion explores the feasibility of creating a bicycle powered by nuclear fission and fusion, considering various nuclear reactants and power sources. It touches on theoretical and practical aspects of using nuclear energy for transportation, particularly in the context of electric bicycles.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants question the possibility of using nuclear fission and fusion to power a bicycle, suggesting it could involve highly radioactive materials.
  • One participant proposes the use of Radioisotope Thermoelectric Generators (RTGs) as a potential power source, noting they could provide sufficient electrical energy for a small motor.
  • Another participant elaborates on the RTG concept, discussing the specific requirements for plutonium to meet the power needs of an electric bicycle, indicating significant quantities would be necessary.
  • Concerns are raised about the weight of a nuclear-powered bike, with comparisons made to the weight of high-end motorcycles.
  • The cost of plutonium is highlighted, with estimates suggesting that the total expense for such a bike would be exorbitantly high.

Areas of Agreement / Disagreement

Participants express differing views on the practicality and implications of using nuclear power for a bicycle, with no consensus reached on the feasibility or desirability of such a concept.

Contextual Notes

Participants discuss assumptions regarding power requirements and the implications of using radioactive materials, but these aspects remain unresolved and depend on specific definitions and conditions.

rahual
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is it possible to create a bike involving nuclear fission and fusion . by using any nuclear reactant.
 
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Maybe a very big highly radioactive bike,
 
You could in principle make use of something like the RTG power sources used by some spacecraft .
This would provide electrical energy sufficient to power a small electric motor.
 
rahual said:
is it possible to create a bike involving nuclear fission and fusion . by using any nuclear reactant.

I'm not sure what you're asking. Could you elaborate a little?
 
rahual said:
is it possible to create a bike involving nuclear fission and fusion . by using any nuclear reactant.

Assuming you're not trolling, it happens all the time. It takes electrical power to build bikes. Fission powerplants supply some of that power. QED
 
rootone said:
You could in principle make use of something like the RTG power sources used by some spacecraft .
This would provide electrical energy sufficient to power a small electric motor.

According to the RTG wiki page 238Pu is the best candidate for an RTG putting out 0.54 watts per gram and needing 2.5mm lead to absorb all radiation. According to the electric bicycle wiki page power requirements are 200-750 watts. So you'd need at least 400 grams of plutonium to power it and that's only for pedal assist, if you want a full on electric motorcycle according to http://www.zeromotorcycles.com/zero-s/specs.php the power requirement is ~40kw, in other words you'll need nearly 75kg of plutonium...
 
The bike is definitely going to be a heavy bit of a beast if that's the case.
Might be a bit less heavy than a top of the range Harley-Davidson though.
 
Not to mention expensive! It's reported at $4,000 per gram. That's $300 million dollars total. If the bike itself was a copy of the most expensive bike sold (that I can find with a quick google) it would add nothing more than a blip to the total bill.
 

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