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Lessons Learned From Google's Green Energy Bust

hackertourist Re:Citation needed (213 comments)

He's referring to a graph that was recently discussed on /., where various levels of funding are graphed against the probable time to develop a working fusion reactor. That graph shows the current level of funding as never achieving its goal.

2 days ago
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Martin Jetpack Closer To Takeoff In First Responder Applications

hackertourist Re:Not a jet pack (53 comments)

You can get various fun cars powered by motorbike engines these days. Several based on the old Lotus 7 (e.g. Westfield, Tiger) are in your 200 bhp/1000 lbs ballpark. Tiger do or did 2-engine versions (2WD, with one driving each rear wheel or 4WD, one per axle). You can even get a 2.8 litre V8 which is 2 Hayabusa blocks on a common crankshaft; with a supercharger if you wish. Hartley builds the engine, used by Radical and Ariel.

2 days ago
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YouTube Opens Up 60fps To Everyone

hackertourist More importantly (152 comments)

they seem to have fixed the site. For the last few months, opening the home page or doing a search locked up my browser for a minute or more. Today both stay responsive throughout the loading process. It's finally usable again!

about three weeks ago
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Space Tourism Isn't Worth Dying For

hackertourist So, by his reasoning (594 comments)

no death is acceptable pursuing leasure activities. We should ban mountain climbing, parachute jumping, diving, all non-commercial travel including driving, and need I go on?

(tagged: drivel)

about three weeks ago
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HP Unveils Industrial 3D Printer 10X Faster, 50% Cheaper Than Current Systems

hackertourist Re:Since this is an HP product, (111 comments)

You say that like it's a good thing.

about three weeks ago
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OneDrive Delivers Unlimited Cloud Storage To Office 365 Subscribers

hackertourist Can you imagine working with a 10 GB Word file? (145 comments)

At a file size of 100 Mb, Word is barely usable (especially if you have Autosave on [1]). I still have nightmares about a job a couple years ago that involved such files.

1: and the larger the file, the more likely you'll need it at some point.

about three weeks ago
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Rite Aid and CVS Block Apple Pay and Google Wallet

hackertourist Re:This'll end up in court... (558 comments)

That is exactly how markets work in cases where you don't want to end up with multiple competing systems. We've seen this with the Bluray/HD-DVD debacle, with VHS vs. Beta vs. V2000, and in the financial sector with credit cards.

The end goal of all participants is a monopoly, and the quickest way to get there is by forming alliances or buying out the competition. The largest alliance benefits from network effects and soon can offer lower prices than the competition. The majority of consumers vote based on price, not on technical merits, and we end up with the largest alliance/best-networked player as the monopolist.

All I'm saying is that this isn't the best way to decide which system should be used for important, big-impact items such as payment systems. There should be standardization, not a commercial free-for-all.

about a month ago
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Rite Aid and CVS Block Apple Pay and Google Wallet

hackertourist Re:This'll end up in court... (558 comments)

No, I'm saying there should be ONE contactless pay system, not several competing systems. Because if the market decides, you just get the biggest player, not the best system. This was worked out long ago for money, it's not called "legal tender" for nothing; companies aren't free to come up with their own coins and bills. Why should abstractions of coins and bills be any different?

about a month ago
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Rite Aid and CVS Block Apple Pay and Google Wallet

hackertourist Re:This'll end up in court... (558 comments)

Why can't the market decide this?

I know why the market shouldn't decide this. Having multiple incompatible payment schemes would be bloody annoying. It's like the credit card market before all the players consolidated into Visa and MasterCard: tons of money will be invested in the losing solution, that's a lot of money down the drain that could have been put to better use.

about a month ago
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Researcher Finds Tor Exit Node Adding Malware To Downloads

hackertourist Re:SSL/TLS may not help if you use Cloudflare (126 comments)

Hm. Ignore parent, Cloudflare is used by the website I'm trying to connect to, not my ISP. Not properly awake yet.

about a month ago
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Researcher Finds Tor Exit Node Adding Malware To Downloads

hackertourist Re:SSL/TLS may not help if you use Cloudflare (126 comments)

My ISP apparently uses Cloudflare. The only information I have to this effect is the error page when I try to connect to a website that's down. So what can I do to avoid Cloudflare? Change ISPs and hope they don't use Cloudflare?

about a month ago
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British Army Looking For Gamers For Their Smart-Tanks

hackertourist Re:I Suggested systems like this years ago (163 comments)

Well, he wasn't wrong. In a fighter jet, the task of driving/flying is vastly simpler than on land, so it's easier to combine driving and targeting. When you're flying, all you have to do is a. not hit the ground and b. point the aircraft in the general direction of the enemy. Weapons are mostly fire-and-forget to minimize pilot workload.
On the ground, there's lots of micromanagement in steering around obstacles, reading the soil to make sure you don't get stuck in a bog etc. In a tank, you have the added complication that the main gun points in a different direction than the vehicle which makes is hard to combine driving and targeting. And the main weapon is unguided, so targeting is manual.

about a month ago
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Xerox Alto Source Code Released To Public

hackertourist Re:PARC monument (121 comments)

"On this spot, Steve Jobs bought all his good ideas."

FTFY.

about 1 month ago
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Mars Orbiter Beams Back Images of Comet's Surprisingly Tiny Nucleus

hackertourist Please (47 comments)

don't link to Discovery.com for TFA. The last time I tried to load a page there, the NoScript menu got half a mile long. Every domain I enabled trying to get the site to display correctly, added 5 more script domains to the list. You end up downloading half the Internet just to display one page.

about a month ago
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The Largest Ship In the World Is Being Built In Korea

hackertourist Re:Fun facts (275 comments)

I checked the MAN 'giant marine diesel' portfolio: they offer 4 different stroke lengths, with rpm ranges that top out at 72 rpm for the longest-stroke version.

about a month ago
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The Largest Ship In the World Is Being Built In Korea

hackertourist Re:Fun facts (275 comments)

Industry-specific units of measurement rarely serve any purpose other than to befuddle outsiders. We decided on an actual standard long ago, these nautical types need to get with the times.

about a month ago
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An Algorithm to End the Lines for Ice at Burning Man

hackertourist Re: Agner Krarup Erlang - The telephone in 1909! (342 comments)

For grocery stores (and other shops where you'd buy a large number of items in one go) the single line is less convenient for the customer.
I like being able to stack all of my groceries onto the conveyor before the cashier starts processing them. When the cashier gets to my groceries, I can immediately start packing them (in the right order, heavy items first).
In a single-line system, you're inevitably still unpacking while the cashier processes your item, so they all end up in a mangled heap at the end of the conveyor belt.

about a month ago
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The Largest Ship In the World Is Being Built In Korea

hackertourist Re:waste of effort (275 comments)

Large pods would just move the inefficiencies elsewhere. You'd have to load the ISO containers into these pods, then load the pods onto a ship.
You can't reliably transfer these pods at sea, so you'll have to do this in port anyway, so your system won't result in shorter routes.
Smaller ships are less efficient than large ships: the longer a ship gets, the more efficient its propulsion system gets. You also get other economies of scale (less crew, for instance).

about a month ago
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The Largest Ship In the World Is Being Built In Korea

hackertourist Re:Largest single emitter of CO2 on Earth? (275 comments)

The CO2 emissions have little to do with impurities in the fuel. They emit so much CO2 because they require a lot of power for propulsion. The Triple-E is a lot more efficient than the previous generation of ships, so CO2 emissions are some 20% lower despite carrying more containers.

about a month ago

Submissions

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Power grid demand matching using flywheels

hackertourist hackertourist writes  |  more than 3 years ago

hackertourist writes "A novel type of electricity storage was recently added to the New York power grid. The unit, supplied by Beacon Power uses flywheels to store energy. The unit is intended to replace gas turbines in supplying short-term peaks in power demand (also known as frequency regulation). It can supply up to 20 MW, using 200 flywheels."
Link to Original Source

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