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Comment: LEP was 209 GeV (Score 2) 165

by grimJester (#47515033) Attached to: China Plans Particle Colliders That Would Dwarf CERN's LHC
This is a pretty small upgrade from the LEP that used to be in the current LCH tunnel. That went up to 209 GeV and ruled out Higgs masses up to 115 GeV. The Higgs is around 125 Gev, or 9% higher, and the energy of this is supposed to be 240 GeV, or 15% higher.

That makes me wonder if the planned energy is enough for a useful Higgs factory. The ILC is supposed to do 500 GeV and would work well as a Higgs factory. That proposal would be more than twice as expensive though.

It's of course possible the article has it wrong and it's really 240 GeV per beam, adding up to 480.

Comment: Article with explanation for laymen (Score 5, Informative) 188

by grimJester (#47313829) Attached to: The Higgs Boson Should Have Crushed the Universe

The mathematics to arise from accepted Higgs field theory suggests the universe is currently sitting comfortably in a Higgs field energy 'valley.' To get out of this valley and up the adjacent 'hill,' huge quantities of energy would need to be unleashed inside the field.

I have no idea what the 'valley' represents, nor the 'hill' so this explanation tells me nothing.

An article by Matt Strassler that should explain more. In particular, this pic

The story about our vacuum having two 'valleys' depends crucially on no new physics existing beyond the already known fields, which is probably false.

Comment: Equations, not algorithm (Score 1) 85

by grimJester (#47270115) Attached to: The Game Theory of Life
"equations used to describe the distribution of genes", meaning the algorithm (mechanism) was probably unknown while the equations just described the end result. Also, the behavior of an algorithm that sees lots of use has probably been studied a lot so there's a treasure trove of material for researchers to dig through to find stuff relevant for genetics.

Comment: But.. (Score 1) 291

all animal species alive now have survived all climate changes in the past.

But almost no animal species alive in the past have survived all the climate changes in the past.

More seriously, they want to optimize meat per dollar taking into account projections of future climate. A current cow would probably do well but be suboptimal. Normal economics at work, nothing to see here.

Comment: What happened to Freemium? (Score 1) 181

by grimJester (#46713333) Attached to: Do Free-To-Play Games Get a Fair Shake?

"Free-to-play" does not literally mean "free to play." It means a game that is specifically designed around microtransactions.

"Freemium" used to be used for games where it's free to play but you could buy premium content for cash. Why call the new ones "free-to-play" if you have to add a footnote saying they're not free to play?

Comment: No (Score 2) 148

by grimJester (#45922309) Attached to: Physicists Claim First Observation of a Quantum Cheshire Cat
It's a lot simpler. They had one neutron in two places and measured different properties of it in the different places.

The new thing is that it's a bit more "real" that it's the same particle in two places than has been done before. I'd guess it's theoretically impossible to measure the same thing in two places, but I really don't know that much about quantum mechanics.

Dennis Ritchie is twice as bright as Steve Jobs, and only half wrong. -- Jim Gettys

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