He actually met Tolkien.

I'm sad because if degenerates like Kim Kardashian or Justin Bieber died it'd be a huge deal, but when a legend like Sir Christopher Lee dies only those with a smidgen of culture recognize the legend and scope of his career. Rest in peace Sir Christopher Lee. You'll be missed.

Who the -blam!- is that

All we need now is for sir Patrick Stewart to die and so much of my childhood will be dead. Mr. Spock, lord of the rings and star wars, and if mr. Stewart dies so dies captain Picard and Xavier.

The universe seems to be filled with a mysterious substance called Dark Matter, which appears to interact gravitationally, with a density of about 0.3 GeV/cm3. Since we cannot see the dark matter, it cannot have electric charge. On the other hand, it must have some non-grav- itational interactions to match our models of early universe cosmology. The leading candidates for what dark matter might be are Weakly Interacting Massive Particles, or WIMPs. For example, in supersymmetry, a natural WIMP appears as the Bino, which is the Fermionic superpartner of the Z-boson. 1. Direct Detection One way to look for WIMPs is though their weak interactions with matter. For example, the LUX experiment (which Professor Morii works on), looks for WIMP scat- tering off of Xenon nuclei. Call the WIMP ψ (a Fermion) and the Xenon φ (a scalar). Then a appropriate Lagrangian describing some of the interactions of ψ, φ and the Z boson is L = − 1 ( F Z ) 2 + m 2 Z 2 − 1 φ ( ﰀ + m 2 ) φ + ψ ̄ ( i ∂ + M ) ψ ( 1 ) 4μν Zμ2 +igZμψ ̄γμψ+iNgZμ[φ⋆∂μφ−φ∂μφ⋆] (2) Note the factor of N = 131 (Xenon’s atomic mass number) which results from the Z interacting with all of the nucleons in Xe coherently. LUX looks for the scatting process ψφ → ψφ by measuring the recoil energy of the φ. a) Draw the relevant Feynman diagram(s) for ψφ → ψφ. Calculate |M|2 for this process, averaging over initial spins and summing over final spins. b) Calculate the total cross section for a WIMP of energy E and mass M to scatter off a Xenon nucleus, in the rest frame of the Xenon. c) WIMPs are expected to be highly energetic, with an average velocity in our neck of the galaxy of 230km . How much Xenon would you need to see 10 scattering events in 1 year for a WIMP mass of 100 GeV? You can take g = 0.3 and mZ = 90 GeV.

The man with the golden gun

*tips fedora*

Dats a good age we still got gandalf

Who

Also was the Captain in the Sound of Music