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by midtskogen
23 May 2021 10:23
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1786
Views: 473488

Science and Astronomy Questions

36528 No not magnetic tracks.....magnetic fields that raise cars above the ground. And how is steering, breaking and accelleration supposed to work? https://www.goudsmit.co.uk/maglev-cars-fantasy-or-reality/ Magnetic levitation I mean, how is it supposed to work in the real world, to be distinguish...
by midtskogen
22 May 2021 08:36
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1786
Views: 473488

Science and Astronomy Questions

A-L-E-X wrote:
Qr Bbpost No not magnetic tracks.....magnetic fields that raise cars above the ground.

And how is steering, breaking and accelleration supposed to work?
by midtskogen
21 May 2021 11:07
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1786
Views: 473488

Science and Astronomy Questions

A-L-E-X wrote:
Qr Bbpost  How fa away are we from hover cars?

If the cars are locked to magnetic tracks, it's really a train, isn't it?  And in a future like that personal cars have become obsolete.
by midtskogen
20 May 2021 22:53
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 908
Views: 238078

Science and Astronomy News

A-L-E-X wrote:
Qr Bbpost This is a pretty amazing discussion on the quantum nature of time

Possibly, but paywalled.
by midtskogen
20 May 2021 14:41
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1786
Views: 473488

Science and Astronomy Questions

I can't remember if we've discussed it here before many years ago, as this is a science fiction vision I've had for quite some time: Cars will be electric and charged by induction on highways.  Car batteries can be relatively small and light, sufficient to keep the car going on the smaller roads.  S...
by midtskogen
20 May 2021 14:29
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36517 Since the pandemic began I worked with the assumption that it is about 1% (or with some fuzziness depending on uncertainties and social factors: 0.5 to 2%), based on the reported CFRs in specific outbreaks and knowing roughly the fraction of asymptomatic cases. Then the antibody studies in Ne...
by midtskogen
20 May 2021 00:25
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36506 The excess deaths in Peru are now 503 per 100,000 people, suggesting an infection mortality rate greater than 0.5%. Maybe, as in suggesting that covid in countries with negative excess deaths makes people healthier.  Mortality rates need to be divided into population groups like age to become...
by midtskogen
17 May 2021 22:34
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36480 So the CDC just relaxed its mask guidance for vaccinated people, both indoors and outdoors. The scientific reasoning behind it sounds good, but the policy is terrible in practice. The main motivation seems to be to act as an incentive for more people to get vaccinated. Which we desperately ne...
by midtskogen
10 May 2021 00:49
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36463 A good way to think about cloth masks is that they roughly double the duration of exposure needed to get infected. So you should still social distance and limit exposure even with a mask. The mask is increasing your safety margin. I think that's the wrong message.  The main purpose of masks i...
by midtskogen
09 May 2021 23:09
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36459 Their fear may be that many people don't understand what airborne transmission really means, and could incorrectly conclude that they can just get it from anywhere, or that masks or other measures won't be effective. If the emphasis had been "avoid places indoors with many people" r...
by midtskogen
09 May 2021 00:20
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 572
Views: 145753

Astrophotography

We can see the Perseids in astronomical twilight in the southernmost parts of the country, but it's fairly limited.  I rarely bother.  Geminids, on the other hand...
by midtskogen
08 May 2021 04:51
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 572
Views: 145753

Astrophotography

The night sky is still dark enough for meteors.  Here's one meteorite candidate from last night.  Too small and over too difficult terrain to warrant any search, though.

larvik-20210508011026-gnomonic.jpg
by midtskogen
06 May 2021 03:05
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

There are reasons to worry.  We see a good share of protests against covid restrictions, and I think it's a sign of a healthy society that there are critical voices against the authorities, but, which is a bit sad, these critical voices tend to come from conspiracy theorists and various crackpots.  ...
by midtskogen
05 May 2021 22:23
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 429
Views: 83440

Coronavirus (COVID-19) Thread

36434 I've heard Australia has decided not to take back its citizens who were in India at the time, so they will be stranded there for the time being. Which makes me wonder whether law and basic citizen rights are amongst the victims of covid-19.  Though governmental responses to a pandemic are req...