Re: [Phys-l] Relativity Question about spring

[<carmelo@pacific.net.sg>]

William wrote:
> Does anyone know if current technology allows a 
> mass change that small to be measured? Perhaps 
> the Discovery Channel Mythbusters could figure 
> out a way to compress a monster spring.

It is good that you're also aware of the "problem".
I wonder if the weight of the super-laser or National Ignition Facility is significantly increased when it is switched on. The gain in "mass of the laser system" due to the presence of photons could be observable one day? 

Alphonsus