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> [if] you want to retain as much precision as possible and still use floats, don't store it in a float with range [0.0,100.0]. Store it with the range [0.0,1.0]. I just tested thi…

How is CUDA-C that much easier than OpenCL? Having ported back and forth myself, the base C-like languages are virtually identical. Just sub "__syncthreads();" for "barrier(CL_MEM_…

Did you read in English? I read it in french and loved it, then looked at Montcrief's translation - I would not have made it through. Montcrief turned Prousts clear and precise (bu…

That would be a straight-up, avoidable software/hardware bug: The incoming timestamp is incorrect, and garbage in is garbage out. That would make me curious how the timestamp error…

The article says the problem was a dropped frame from the camera, but that just further piques my curiosity: Presumably they use some kind of Kalman Filter, but those are easy to p…

Sperm cells can be seen as a haploid phase of many organisms' lifecycle, so are alive by pretty much any definition. In humans, the haploid phase of the lifecycle is single-celled,…

It may be coming back though. IBM's new and rising supercomputer architecture, POWER9, supports hardware IEEE binary128 floats (quad precision). Their press claims the current fast…

Yes, forces transmitted through fields act "at a distance", but is that really "spooky"? Do you think it is "spooky" that if you make a wave at one end of a pond, the wave reaches …

No it isn't. There is still plenty of debate about the philosophical implications of Bells' inequality. See for example this 2014 PNAS article "Quantum nonlocality does not exist":…

I've read Chomsky's opinion on this before in his essay ""Science, Mind, and Limits of Understanding", and I think he misunderstands the physics. He seems to think Newton accidenta…

I use a huge amount of open-source software which I do not believe is subsidized. Some is, eg some linux/gnome devs are paid to contribute. But many smaller projects/components are…

Bitcoin has both fees and delays. You can see what they are now: https://bitinfocharts.com/comparison/bitcoin-transactionfees... https://blockchain.info/charts/avg-confirmation-tim…

> Universities will just start offering education for free instead of waiving the tuition Aren't you supposed to be taxed on the value of a good/service/gift received even if it wa…

The book was written in 2002, and I just looked up Nick lane's latest 2016 take on it here: [1] His point in this new article is that instead of one big "oxygenation event" there m…

The reason water exists on earth, and not on mars, may be that life on earth saved the water by discovering photosynthesis. The discovery of photosynthesis caused the "great oxygen…

A trick for dealing with periodic coordinates, not discussed in the article, is to convert each periodic coordinate (eg, an angle theta) into a pair of cartesian coordinates (x,y) …

"Single Particle Reconstruction" for Cryo-EM reconstruction algorithm, anyone? SPR is an algorithm already used to reconstruct 3d objects from a set of 2d images produced by an ele…

Summary: -- Their trades are profitable f = 51% of the time, and they do N = 3 million trades per day. -- Their net profitability per day is thus (well approximated by) a normal ra…

An example of what I would consider red-light camera abuse: Philadelphia has a number of red light cameras which each generate about 10,000 tickets a year. That's about 30 tickets …

My impression is that physicists who say this usually don't know much about the theory and evidence for evolution. (I am trained in physics, I now do biophysics). What about the be…

Follow the money: "This work was supported by the Army Research Office (ARO) in the form of a Multidisciplinary University Research Initiative (MURI) (grant number: W911NF-13-1-038…

Peter Wadham, head of the Polar Ocean Physics Group at University of Cambridge, has repeatedly made claims that Arctic sea ice will melt "next year". Eg in 2012 he predicted it wou…

Melting Arctic ice also changes the surface albedo so more solar energy is absorbed, it changes the ocean salinity, and no longer cools the winds above it. Thermal expansion of the…

A lot of journals are starting to do this. For example PNAS (a top ranking journal) introduced a required "significance statement" in addition to an abstract, which is meant to be …

Probably it is referring to the overlap in mathematics between condensed matter and particle physics. Both fields can be seen as explorations of the mathematical framework known as…