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Comment: Re:280km (Score 1) 189

by JanneM (#49523715) Attached to: Maglev Train Exceeds 600km/h For World Record

For the Osaka-Tokyo route, the Shinkansen made the difference between an overnight business trip or return the same day. That made it insanely popular. With the new train, you can not just make a set of meetings; you can do a full days work and still get back the same day (even more so for Nagoya of course).

Many people here get stationed at offices in other cities for months or years, and leave their families behind. They effectively do a weekly commute, and come home only on weekends. For a lot of people this would let them get home more often or even stay home and make this a daily commute. Expensive, but on the other hand the company doesn't have to pay for a second short-term apartment and the other costs of two households.

Comment: Re:Wasn't quite the revolution ... (Score 1) 134

by JanneM (#49481743) Attached to: Chinese Ninebot Buys US Rival Segway

I appreciate your idea, but I don't think it's that good a fit for the Segway.

People that can't walk a mile most likely needs their own assistance tech - a walker, a wheelchair - on the bus or train as well. And people that don't have time to walk a mile or two won't be helped by a thing that barely moves above walking speed. A bicycle rental spot (or free city bikes) would be more helpful and less costly.

Comment: Re:We aready have this (Score 1) 33

by JanneM (#49377095) Attached to: Hand-Drawn and Inkjet Printed Circuits for the Masses (Video)

I solder SMT components by hand as well. Don't even need a microscope; just head-mounted magnifier glasses is plenty. Make sure you have good light and plenty of flux and you're good to go.

But the problem is the board. Sure, if you have a finished design already, and you intend to actually use it in the future, then sending off for a finished PCB is good. But if it's just a hobby, and you're prototyping or just playing around to better understand a particular circuit, then spending a good chunk of money and weeks of time for a board is simply not feasible. You really want to set something up, try it, then tear it down and try the next idea.

With that said, I don't know that this is the answer either. Hand-drawn does not sound precise enough to handle SMT, and a whole separate device just making prototype boards sounds like too much money and space for a hobbyist. Perhaps the answer is desktop mills that become cheap and precise enough that you can use them to cut out boards from copper blanks along with other building tasks. At least that would not be a single-purpose gadget.

Comment: Re:Not a watch (Score 1) 111

A watch is a mechanical timepiece you wear on your wrist.

No. A watch is a piece of jewellery you wear on your wrist. The only difference between a wristwatch on one hand and a pendant, a bracelet or a brooch on the other is that a watch is the only widely allowed jewellery (other than a wedding ring) for men. Of course, the intricate mechanics and technical craftmanship is an added appeal, though the actual function of telling time is just a bonus, not the main point.

And that explains why there are such a large number of watchmakers, and such a huge number of models; with jewellery, the last thing you want is to wear the same thing as everybody else.

Comment: Re:AKA as Database Syndrome (Score 4, Insightful) 112

by JanneM (#49263469) Attached to: Scientific Study Finds There Are Too Many Scientific Studies

For citations central to your argument, sure, you need to track down the main papers. It's not that difficult - just look at what papers everybody else is citing. But most citations are just fulfilling the [citation needed] reqs for facts you use in your work. Any one of dozens, sometimes hundreds, of papers would easily fill in for that role.

You find two references about the same thing. As far as citing the fact you need they're essentially equivalent. One will take three weeks and thirty dollars - and half a day of arguing to make the lab pay those thirty dollars - to get, and half the time your thirty bucks will give you a badly printed paper copy. The other you can download into your paper manager and read right now. Guess which one almost everybody will use?

UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn

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