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Comment Re:Reads Like An Ad (Score 1) 336

Truly energy-producing fusion is not available even in bombs.

Sure it is. The fusion components of boosted and multi-stage bombs produce lots of energy. In two or three stage devices that use inert tampers fusion produces the vast amount of energy.

The earliest known incidence of a three-stage device being tested, with the third stage, called the tertiary, being ignited by the secondary, was May 27, 1956 in the Bassoon device. This device was tested in the Zuni shot of Operation Redwing. This shot used non fissionable tampers; an inert substitute material such as tungsten or lead was used. Its yield was 3.5 megatons, 85% fusion and only 15% fission.

The public records for devices that produced the highest proportion of their yield via fusion-only reactions are the Peaceful nuclear explosions of the 1970s, with the 3 detonations that excavated part of Pechora–Kama Canal, being cited as 98% fusion each in the Taiga test's 15 kiloton explosive yield devices, that is, a total fission fraction of 0.3 kilotons in a 15 kt device.[35] The 50 megaton Tsar Bomba at 97% fusion,[36] the 9.3 megaton Hardtack Poplar test at 95.2%,[37] and the 4.5 megaton Redwing Navajo test at 95% fusion.[38]

https://en.wikipedia.org/wiki/...

Comment Re:Great System (Score 1) 238

This is for two days. It's not likely even the ultra rich are going to buy a new Mercedes specifically to bypass this rule when the maximum in fines they'll suffer will be EUR35. Not unless Europe has seen some significant deflation lately and EUR34 is the cost of a brand new Mercedes.

Comment Re:Banish cars from the city center (Score 2) 238

I used to walk half way across Reading, in the UK, from Sainsburys in the city center to my flat, carrying four or more bags of groceries. Older people had little carts, resembling carry on bags (the type with a slide out handle and two wheels) you'd see in an airport, to do the job.

And in the event I really had too much weight in those bags to contemplate walking that distance, I'd take a bus.

Why would you think you'd need a magical transportation device for more than one grocery bag?

Comment Re:Way ahead of you (Score 1) 238

One issue with public transportation in the US (not so much in the EU) is that everyone assumes that the primary incentive to get people to use it must be cost. As a result, it's usually run on an absurdly low budget, given revenues are only a fraction of costs, and inevitably it ends up not being terribly useful. Which means few people ride it, at any cost.

If you want public transportation to be popular, you need to make it useful. Make it useful enough, and people will use it, even if the prices are similar to, or even higher than, other forms of transportation.

One Parisian above claims that it takes an hour and a half to cross the city to get from one suburb to another, while it takes 20 minutes by car. That, to me, is a sign that there aren't enough buses filling in the gaps. Here in Martin County, Florida the "bus system" appears to be designed to turn tax money into jobs, rather than provide a useful service, with buses spaced an hour apart, taking an inordinate length of time to cross the county, only offered during daylight hours, and providing no effective county to county service. If they ran every ten minutes, with express buses linking to nearby county systems, I'd probably use it, because I hate driving.

On a wider scale (yes, I know this isn't directly comparable, it's to demonstrate the point about usefulness vs price), Amtrak's Acela Express charges passengers orders of magnitude more per mile than, say, the Silver Meteor. It also carries 10-20x as many passengers. Why? Because it's useful. It links major population centers with an hourly service, rather than linking minor towns and cities with a once-a-day service. So people are willing to pay big money to travel on it. Which is why it makes double what it costs, as opposed to the Meteor which makes half of what it costs.

Build a useful service and they will come. You don't need to make it free. In fact, making it free is probably the worst possible thing you can do.

Comment Re:Bluetooth Headphones (Score 1) 334

Plus Bluetooth on Android (may be true of iOS too, no idea) is fairly bug ridden and crappy. I've seen three relatively recent Android phones that crash if they try to connect to our minivan's BT system. Googling for "bluetooth share has stopped" (the error message the phones give) show this is a common problem and has been for some years. Looks like the 4.x series was the last version of Android that had remotely stable Bluetooth support.

You'd think, at the very least, Samsung would hold off until Google can put out a half way stable Bluetooth stack.

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