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MIT Designs Tsunami Proof Floating Nuclear Reactor

nickersonm Re:Does the name 'Titanic' ring any bells? (218 comments)

Solution: sink it in advance of nature doing the job. i.e. SSNs without the propulsive and weapons systems.

about 5 months ago
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Kepler-186f: Most 'Earth-Like' Alien World Discovered

nickersonm Re:Great, now all we need to do... (239 comments)

Interesting fact: at ~0.7c, the kinetic energy is equal to the rest mass of the ship. So if you have a photon drive running off of a perfectly efficient total conversion engine, you'll have fed more than half your ship to the converter by then.

about 5 months ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

nickersonm Re:Power? (630 comments)

I recall reading that at least one of the two models to be tested soon has easily-replaceable rails that need to be changed every few shots.

about 5 months ago
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Supreme Court Ruling Relaxes Warrant Requirements For Home Searches

nickersonm Re:Sure (500 comments)

Are you implying that the cops are like vampires, and can drag along a human to get them in to places?

about 7 months ago
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4K Ultra HD Likely To Repeat the Failure of 3D Television

nickersonm Re:I would love 4K!!! (559 comments)

I have a relative who is an architect, he recently purchased one of those for reviewing architectural plans. He's quite happy with it - far better than zooming in an out on his other 1080p screens, and he can easily compare to the paper.

about a year ago
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Elevated Radiation Claimed At Tokyo 2020 Olympic Venues

nickersonm Re:New proposal. (164 comments)

Since Sieverts are a measure of ionizing radiation, then obviously the background levels I mentioned are ionizing radiation.

Certainly the physical distribution of the radiation sources are important, but I didn't think that was worth mentioning in a simple summary comparison. Sieverts already attempt to correct for biological effects, but yes, if the radiation source is something that can internally bioaccumulate, it will have more complex and serious effects. That is beyond a simple single-measurement comparison, however.

about a year ago
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Elevated Radiation Claimed At Tokyo 2020 Olympic Venues

nickersonm Re:New proposal. (164 comments)

The highest reading mentioned in the article, 0.484uS/hr, is approximately 1.07 Denver, or 0.96 Boulder. Exact values are hard to find, but it seems Denver is around 4mSv/year, and Boulder is ~4.5mSv/year, which is about .45 and .5 uSv/hr.

about a year ago
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Its Nuclear Plant Closed, Maine Town Is Full of Regret

nickersonm Re:This is disputed (380 comments)

Exactly. Even the northern US is pretty good - this article has some nice quantitative analysis:

the worst location in the continental U.S. is only a factor of two worse than the best solar location.

about a year ago
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Its Nuclear Plant Closed, Maine Town Is Full of Regret

nickersonm Re:This is disputed (380 comments)

Solar is dead. Most of the US doesn't get enough sun to make solar feasible.

This article has a good solar efficiency study for the entire US. In summary, there's not a lot of difference in the contiguous US - about the only place where solar is significantly worse off is Alaska.

about a year ago
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Secret Court Upholds Phone Data Collection

nickersonm Re:No Surprise (174 comments)

You have to be willing to accept near-term losses in order to get long-term gains. Spoiling the 'less evil' party of your opinion may cause them to shift toward your preferred politics.

about a year ago
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FEMA Grounds Private Drones That Were Helping To Map Boulder Floods

nickersonm Re:Not autonomous? (356 comments)

[s]UA(S|V) - [small] Unmanned Aerial (System | Vehicle)

Although personally I do prefer "drone". It does afterall refer to "an unmanned aircraft or ship guided by remote control".

about a year ago
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Boulder's Tech Workers Cope With Historic Flood

nickersonm Re:From Someone Who Works in Boulder (85 comments)

I was around on my bicycle yesterday and today; the flooding didn't seem too bad west of Broadway, except for the creek path, but there's more low-lying buildings east of there. Nothing of note on the main CU campus. Although it appears that Boulder Creek was quite a bit higher late last evening than it was when I was there. Very high debris marks and silt all over, including through a lot of the downtown streets. Also a mudslide early this morning at the opening of the canyon.

I have a number of pictures here (somewhat low quality), and several short videos from the same areas.

1 year,2 days
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New Android Eyewear Wants To Compete With Google Glass

nickersonm Re:Let's Break This Down (55 comments)

I want to. I've been waiting for an acceptably priced HMD since they were available for many thousands in the late 90s.

about a year ago
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Physicists Create Quantum Link Between Photons That Don't Exist At the Same Time

nickersonm Re:Photon model broken (364 comments)

The substructure of the universe regresses infinitely towards smaller and smaller components. Behind atoms we find electrons, and behind electrons, quarks. Each layer unraveled reveals new secrets, but also new mysteries.

- Academician Prokhor Zakharov, "For I Have Tasted the Fruit"

about a year ago
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Google's House of Cards

nickersonm Re:Been there, done that (115 comments)

WinKey+Tab is an alternate presentation of the standard Alt+Tab window. I don't find it particularly useful, but I imagine someone does. Perhaps when working with many similar windows?

about a year ago

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