There are Rarita-Schwinger equations: $$ \tag 1 (p\!\!\!/ - m)\psi_{\mu} = 0, \quad \gamma_{\mu}\psi^{\mu} = 0, \quad i\partial_{\mu}\psi^{\mu} = 0. $$ So the polarization sum $D_{\mu \nu}(p) = \sum_{s}u^{s}_{\mu}\bar{u}^{s}_{\nu}$ (spinor wave for particle) must satisfy all of this relations. Al...

I wrote this question, intentionally using lagrangian, not Lagrangian. Google is a company name, a proper noun, but google is a verb; Fermi is a person name, but fermion is a noun. I think this is right, alike Feynmann. I know that Lagrangian is widely accepted and if I write different, readers w...

When swinging my comfy hammock, I travel all day even up to 0.99 $c$, some days even more, depending on what particles are passing me by and measuring my exorbitant speeds with their atomic clocks and photons..!

I was just watching a documentary about dinosaurs and this question came to my mind. In Jurassic Park, the whole story is based on the premise that dinosaurs were recreated using the blood found in an amber. Later scientists create the dino DNA and hence create dinosaurs. How realistic or scienti...

It would melt the thermometer so it would be illegible.