[extropy-chat] Suicide the Green way

[Anders Sandberg]

spike wrote:
>  I would be curious
> to
> know why low resistance beats lightness -- do the photons charge the sail?

I think it is not necessarily that it always beats lightness, but it
improves efficiency. A photon hitting a good conductor is reflected, while
a photon hitting a poor conductor heats it - less energy gets reflected.

Landis has some calculations on this.

-- 
Anders Sandberg,
Oxford Uehiro Centre for Practical Ethics
Philosophy Faculty of Oxford University