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Comment Re:dish antenna (Score 1) 122

They'll definitely go after boats once the satellite backhaul is up and running: the fleet of ocean-going freighters is much bigger than passenger-carrying aircraft. And those freighters have crew on board that would love to make video calls with their families and watch Netflix.For ship owners/lessors, the expense of Starlink is minimal for the quality-of-life improvement for their crews. That's not to mention cruise ships that would probably use multiple terminals, or those cruising in small craft who currently use Iridium when outside of cell range.

The satellites are already passing overhead, so the only real challenge will be integrating some kind of pendulum to keep the antenna reasonably aligned in heavy seas (beam forming can only do so much).

Comment Re:Wait and see (Score 1) 224

As someone with approximately 20/9 vision (after laser correction), I basically agree with what you're saying. Based on my experience with 4k screens, a 60" 4k display at 8' distance (126 PPD) would appear basically lifelike.

I do easily see pixels on my 40" 1080p screen sitting 8 feet away (93 PPD). It's most jarring when seeing fonts or graphics, or anything with curved or diagonal edges at medium or higher contrast. With a 72" 4k screen at the same distance (106 PPD), I would see pixelation, but that's a very large TV.

Considering I still haven't replaced the 1080p TV with a 4k one, I'm not going to rush out to buy an 8k TV. I don't want a physically bigger TV and I'm not going to sit closer, so 8k wouldn't make sense, even for me.

But I am glad high PPI screens are generally available now, unlike a decade ago. I use 4k at 24" on the desktop (119 PPD at 3'), and it's wonderful to no longer see pixelation when staring at a screen. I do realize 20/10 or better vision is about 1 in 1000 rare, but that's still millions of people, and there's no reason the option for higher resolution shouldn't be available for where it actually makes sense.

Comment Re:Now that cryptocurrency mining doesn't pay (Score 1) 65

Yes. The most effective GIMPS use of GPUs is currently trial factoring. That is basically brute force division of the candidate number by small factors, which can eliminate candidates faster than doing a full Lucas-Lehmer or probable primality test. The new prime was trial factored by numbers up to 75 bits long. The optimal bit depth to trial factor to depends on the GPU hardware, especially the double-precision to single-precision ratio. Trial factoring can leverage SP, while the current LL and PRP implementations on GPUs leverage DP. There is an active investigation of the feasibility and performance of a SP LL/PRP algorithm on GPUs. GPU trial factoring for GIMPS is largely coordinated through GPU72.

As for the non-GPU crypto hardware, someone could write an algorithm for FPGAs. The ASICs have no GIMPS utility that I'm aware of.

Submission + - 51st Known Mersenne Prime Found! (mersenne.org)

chalsall writes: The Great Internet Mersenne Prime Search (GIMPS) has discovered the largest known prime number, 2^82,589,933-1, having 24,862,048 digits. A computer volunteered by Patrick Laroche from Ocala, Florida made the find on December 7, 2018. GIMPS has been on amazing lucky streak finding triple the expected number of new Mersenne primes — a dozen in the last fifteen years.

Submission + - 50th Known Mersenne Prime Found!!! (mersenne.org)

chalsall writes: Persistence pays off. Jonathan Pace, a GIMPS volunteer for over 14 years, discovered the 50th known Mersenne prime, 2^77,232,917 — 1 on December 26, 2017. The prime number is calculated by multiplying together 77,232,917 twos, and then subtracting one. It weighs in at 23,249,425 digits, becoming the largest prime number known to mankind. It bests the previous record prime, also discovered by GIMPS, by 910,807 digits. You can read a little more in the press release.

Submission + - Female Developer sues Women Who Code and Google Women Techmakers for Defamation (medium.com) 1

_Sharp'r_ writes: Marlene Jaeckel, co-founder of Polyglot Programming, is suing for defamation of character after being silenced and kicked out of Google Developer Group, Google Women Techmakers, Rails Girls ATL and Women Who Code because of her political views and especially her friendship and public support for former Google employee James Damore. The ban is controversial among group members.

Comment Re:Physical distribution media? (Score 1) 260

You're not alone. I've had the same experience. Anything flashing below 70 Hz or so makes me nauseous. When I bought my current monitor, I specifically found a flicker-free screen, which was a challenge five years ago. Apparently someone figured out if they synchronized PWM brightness to the frame rate it made the images appear sharper â" but it just gives me eye strain. Most TVs are still constructed this way, and I actively avoid entering stores that sell TVs.

Comment Re: Shocking! (Score 1) 527

Try wild strawberries: they are intensely sweet and flavourful compared to their farmed counterparts. Their farmed counterparts have been bred for size and shippability, and taste and eat more like a potato than the original fruit. Wild strawberries are the only exception I can think of though.

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