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frede

267 karma · joined October 27, 2012

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frede··on The Fancy Rug Dilemma
I was thinking more of something like mechanical watches - more expensive than a quartz watch and less accurate.
frede··on Einstein's Other Theory of Everything
This recent presentation from Kepler Airospace claims that Einstein was on the right track and a goes even further, stating that gravity can be manipulated through EM. I've graduated in Physics but not quite sure what to make of it.

https://www.researchgate.net/publication/383609891_Gravity_M...

frede··on Public US hearing on UFOs [video]
It becomes easier when science can be millions of years ahead.
frede··on Public US hearing on UFOs [video]
If all major governments keep it secret, the conclusion would be that the phenomenon wants it that way. The US wouldn't be in charge. But apparently something changed.
frede··on Public US hearing on UFOs [video]
There may not be much of a difference left then between machines and biologicals. Generations would alternate like a jellyfish does between polyp and medusa. No need for generation ships.
frede··on Public US hearing on UFOs [video]
It could be the phenomenon that has the astonishing competence.
frede··on U.S. universities are building a new semiconductor workforce
In the country I work it goes like this: the employers are members of an IT association, once a year each employer sends over the anonymous salaries for each job title. The associations aggregates them and sends back the distribution, which HR then uses as a reference. Similar result, but no direct collaboration between employers needed. You can even buy the report for each position as an employee for a fair price.
frede··on System separation in the Continental Europe Synchronous Area on 8 January 2021
The system survived the partitions, there was no widespread blackout. Further, the system is not organized by the EU, but the ENTSO-E and contains e.g. countries from North Afrika.
frede··on Choosing the Management Track
Switzerland a notable exception.
frede··on Solar’s Future is Insanely Cheap
The forecasts from the IEA are my favourites, predicting a decline in PV expansion every year. https://www.pv-magazine.com/2018/11/20/iea-versus-solar-pv-r...
frede··on Solar’s Future is Insanely Cheap
Energy is cheap, power is expensive - you can already get energy for free sometimes on the intraday market, but you still pay if you need delivery at a certain time and the grid fees for peak power consumption stay expensive. I am looking forward to Tesla's million-mile battery!
frede··on The Unstoppable Rise of Sci-Hub (2019)
The research institutions would of course save money on the journal descriptions that could then be used to pay for open access submissions.
frede··on France to Raise Pollution Tax on SUVs and Trucks to €22k
Your neighbor will be fine. The taxes start at 160 g CO2/km. The Vitara has between 121 and 172 g/km.
frede··on US Navy's Railgun Now Undergoing Tests in New Mexico
Nitpick: the velocity grows linearly, not exponentially.
frede··on Linus Torvalds: “Somebody is pushing complete garbage for unclear reasons.”
It seems the grandparent (authored by Linus, too) in the email thread is not available any more. Did Linus delete it?
frede··on China to Overtake U.S. Economy by 2032
Some British may not like it but the UK is a European country by geography, too.
frede··on World's steepest funicular railway opens in Switzerland
If you plotted the altitude with a function f(x), it's just the derivative f'(x) expressed in percent.
frede··on What Was Once Hailed as First U.S. Offshore Wind Farm Is No More
How does a nuclear plant produce renewable energy?
frede··on Best attempts so far to skin Schrödinger’s cat (2016)
The thing about quantum theory is that it's not just about propabilities. The double-slit experiment, for example, cannot be explained by adding propabilities alone. Instead the wave function gets added, with the phase considered. This is why an unobserved quantum state is more than a classical state hidden in a box and why we get results that seem paradox.
frede··on UK survey: 40% of respondents pay more than 50% of their incomes on rent
For London it would also help to increase the density of housing. Large areas of the city are still built with Victorian houses.
frede··on UK survey: 40% of respondents pay more than 50% of their incomes on rent
From a landlord's perspective, they prefer if you do not spend more than 1/3 of your income on rent.
frede··on A tall chimney to facilitate heat exchange in the atmosphere
The air cools down when raising in the chimney because the air pressure decreases, leading to adiabatic expansion.
frede··on Theories about a link between the human mind and quantum physics
The physical theory is close to perfect, it's the interpretation that leaves room for questions.
frede··on Cmd/compile: Go 1.8 regression: sync/atomic loop elided
One point of view is that the removal of the atomic increment is justified because the programmer cannot rely on the execution of the go routine that contains the increment. If you add an explicit call to the scheduler the problem is fixed. However, the justification is a bit of a stretch and it looks like it will be changed back to old behavior by the go developers.
frede··on Bypassing Antivirus with Ten Lines of Code
It's actually a cast to a function pointer with signature: void exec(). The trailing brackets () then make the program call the function.
frede··on SpaceX Unveils Crew Dragon Interior
Aside from the big dial under the flat screen even the dedicated buttons are flat.
frede··on SpaceX Unveils Crew Dragon Interior
I wonder if flat buttons are a good idea. On top of a vibrating rocket I'd prefer buttons where I can feel their outline with my finger tips. The labels seem light gray, a less elegant but better visible writing might be better suited here, too.
frede··on Hack Back – A DIY guide to those without the patience to wait for whistleblowers
How did he get the php shell started after uploading it attached to a ticket? I did not get this step.
frede··on Obama's Secret Terrorist-Tracking System, by the Numbers
These revelations are too new to be from Edward Snowden, Glenn Greenwald and Bruce Schneier suspect a second leaker.

https://twitter.com/ggreenwald/status/485081861119832064

frede··on Near Miss: The Solar Superstorm of July 2012
A nuclear power plant cannot run at say 10% to just power its own systems after it was separated from the grid. That's why diesel generators and batteries are so important to keep the reactor from melting.

It's hard to find a source on this, I apologize. The reason is that it only has large turbines to generate power, and these cannot be operated for arbitrary power output.

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