User talk:Sparkyscience/Archives/2017/July

Discovery of negative mass
Hi,

I was wondering if you had a PhD in physics or at a minimum a masters? If not could you please direct me to an editor who does?

I am not a physicist, but based on my research, "Prof. Peter Engels and a team of colleagues at Washington State University claim to have observed negative mass on the 10th April 2017 when they created new negative effective mass by reducing the temperature of rubidium atoms to near absolute zero, generating a Bose-Einstein condensate. By using a laser-trap, the team were able to reverse the spin of some of the rubidium atoms in this state, and observed that once released from the trap, the atoms expanded and displayed properties of negative mass, in particular accelerating towards a pushing force instead of away from it.[22][23] This kind of negative effective mass is analogous to the well-known apparent negative effective mass of electrons in the upper part of the dispersion bands in solids[24]", this is flat wrong, they discovered negative "effective" mass due to the properties of Bose–Einstein condensate, which is normal mass which behaves like negative mass. I removed the section hopeful an expert can write what they actually discovered. Valoem  talk   contrib  13:38, 22 July 2017 (UTC)


 * I changed the section from discovery to experimentation, I was hoping for another set of eyes to make sure the information is correct as I am not an expert. Valoem   talk   contrib  15:27, 22 July 2017 (UTC)

Survey Invite
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