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Comment Easy Investment (Score 1) 251

In the 1890s the king of Hawaii sent a telegram to Thomas Edison asking about the feasibility of transporting geothermal power on the big island, which is relatively less populated, to the capital in Oahu by means of an undersea cable.

Looking for geothermal wells is guesswork, just like looking for oil. Still, there are ~20 prospective geothermal wells that have not been explored on the big island, and it is estimated that the combined output of the resources in these wells could supply up to 4 times the current power consumption of the entire state, for up to 500 years.

Comment Re:Matter and Energy...or not? (Score 1) 167

General Relativity is the only theory of spacetime that is mathematically consistent with (1) special relativity and (2) the local equivalence principle i.e. "a freely falling observer does not feel their own weight". This general theory includes a cosmological constant, and astrophysicists are attempting to use observations to measure this parameter.

It is not as if physicists create theories by guessing, they derive them as necessary conclusions that follow from accepted assumptions.

Comment Skeptical of Analog Data (Score 1) 1

Great work if it pans out, but I have a hard time understanding how a standard optical drive can read analog data at all. I thought that the depth of the pits on a cd-rom were designed to be a certain fraction of the wavelength of the read laser so that the reflected beam would destructively interfere with the incoming beam. This means that the photodiodes only need to distinguish between full constructive interference (1) and full destructive interference (0). If the photodiodes have an analog sensitivity, then we could in theory probe the height(x,y) of the "surface" (human tissue) using interferometry (somewhat like an electron microscope), but even then I don't see how this could lead to the diagnosis of any disease. I suspect sensationalism.

Comment Terrible Analogy (Score 1) 1

Relying so heavily on models with weak assumptions is a human error, not a computer error. This analogy is meant to shift blame away from the people who allowed this to happen: these quants knew that what they were doing was unsustainable, but they let greed overcome morality. The complexity of the global financial computer network only served as a smokescreen to distract others while they made off with their money.

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