Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×

Comment: Re:It's a model (Score 1) 230

by Askmum (#49248447) Attached to: Man 3D Prints a Working 5-Speed Transmission For Toyota Engines
While I agree to this, you could scale it up to full size. Then still, the question on "it could function as a replacement for the real thing" is not so much a "are you sure?", but "for how long?"
In other words: how much torque can this thing handle before it breaks. I'm sure it's not much and therefor it still remains a nice piece of machinery but unfit for a replacement.

Comment: Re:Damn... A win for the creationists (Score 1) 94

by Askmum (#49223501) Attached to: Oldest Human Fossil Fills In 2.8-Million-Year-Old Gap In Evolution

I know you are joking, but in a way it is a win for creationists. After 2.8 million years, we have under 8 billion people on earth. Statistical models just don't support it. You have creationists that believe there could have been more people on earth prior to the flood than there are now, in just 1656 years when the lifespan was ~900 years per person. My great great grandparents had 11 children that lived to adulthood, and my grandparents had 6...try running those numbers. At just 4 surviving children per parents, using 33 years per "generation", you easily hit 8 billion in 1000 years.

You mean that the best possible model is statistically significant? Wouldn't you think there is a higher possibility that the population growth is not exponentially at all times? Surely, there are lies, damn lies and statistics.

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

Comment: Re:Realistic (Score 2) 374

by Askmum (#49134987) Attached to: The Groups Behind Making Distributed Solar Power Harder To Adopt

I think solar is great - I have some panels on my camper, which is very conducive to solar type use because it's already designed to function off-grid. But let's be realistic. Let's say every home in America stuck a couple thousand watts of solar power on their roof, and wanted to sell the power into the grid (as opposed of having to store it on-site). How is that supposed to work? If no power generation is required by the power company when the sun is shining, but the full normal generation is required the instant clouds sweep over a community or at night, etc, then how is that supposed to work? None of the power generation plants can function in that "instant on / instant off" type of a mode. Particularly not nuclear. The point is, once the adoption reaches some (rather smallish) percentage, there will be some major problems and costs that will have to be addressed.

Before that occurs (in the US), a lot of years will have passed. Germany has had a day with 75% renewable energy production and 50% solar production and will undoubtedly get similar occurences this year too. They also still have nuclear power plants and it all works. Sure, nuclear power plants are notoriously bad to change in output on short term and will therefore gradually fade from view, which is not a bad thing alltogether (even though I am not opposed to nuclear). New technologies will come to mitigate problems of temporary overproduction, like Elon Musk's battery pack for homes.

It is all not a problem that can be solved. The only problem is big powerful companies fearing for their livelyhood and having the money and influence to prevent these changes from happening.

Comment: Re:Now needs a better phone app (Score 2) 77

by Askmum (#49078849) Attached to: OpenStreetMap.org Gets Routing
It does not require an internet connection but it has a stupid arbitrary distinction between "city" and "town" where when you search for a place it will first only search in its list of cities and you have to manually select to search further, and the search then becomes painfully slow. As if it's geared towards city users only.
It is a good navigation app, but it suffers from some bad mistakes and unwillingness to correct them. But ok, it's a one-man-job, or so I believe, so it is commendable it is at this level at all.

Comment: Re:Aerial or underground ? (Score 1) 516

by Askmum (#48472759) Attached to: Ask Slashdot: Why Is the Power Grid So Crummy In So Many Places?

And what if the place you live in has a lot of trees?

I live in a country where there are virtally no aerial powerlines 10 kV (I would hazard a quess that there are less then 10 km of aerial lines in the whole country). Power outages are very rare. If it happens to you once a year than it is a lot.

Comment: Re:I use yahoo mail (Score 1) 400

So having all choices be "wrong" justifies calling people out for trying at all?

Yes, I do not believe that all choices are wrong. I think my provider does not do all of that. And specifically going to Yahoo because you dislike Google's privacy policy is plain wrong because Yahoo violates your privacy exactly as Google does. Out of the frying pan, into the fire.

Comment: Re:stupid germans (Score 1) 419

by Askmum (#48400521) Attached to: Japanese Maglev Train Hits 500kph
The ICE does not average 300 km/h at all. It has a maximum speed of 300 km/h which makes clear that it can never get that as an average speed between stops. And I don't really see why it has overtaken the TGV. TGV does 320 km/h (LGV-Est), has more dedicated lines and gets higher average speeds because of that.
As a comparison: Cologne - Frankfurt Airport is about the same distance as Lorraine TGV - Champagne-Ardenne TGV. But the first takes 49 minutes, the latter 36. That's 205 km/h or 278 km/h average (and I believe both are the fastest operating services of both networks).
I think even Milano - Bologna has a higher average speed than the ICE.

Comment: Wishful thinking (Score 1) 246

by Askmum (#48366455) Attached to: The Strangeness of the Mars One Project
How recent before man walked on the moon did people say that man would never walk on the moon? The fact that not all (or most of the) questions have not been answered does not mean it is impossible. Especially an astronaut should see that. It is clear that if Chris Hadfield were born 50 years earlier, he would not have been part of NASA because he couldn't begin to comprehend why it would have been possible. So yes: wishful thinking: if you think you can't, you probably won't. If you think you can, you'll build to make it happen. That's how you move forward, not by saying you can't.

I never cheated an honest man, only rascals. They wanted something for nothing. I gave them nothing for something. -- Joseph "Yellow Kid" Weil

Working...