25 years ago (I hope this is sufficiently close to today) in Quarks & Co, a German TV science format, they analysed what it would take to build the Cheops pyramid in Cologne. It would take 10 month for the concrete foundation and 5 years for the lower two third of the pyramid. Use of modern technology makes it possible to place one stone every 20 seconds, which is triple the rate ancient egypt workers supposedly aceived. So I guess it would take 6-7 years in total.
Usually the water that will become tap water is also not pumped directly from the river but is bank filtrate from nearby underground.
I would also point out that my spell checker seems to think that the plural of roof is spelt “roofs” but I’m sure it ought to be “rooves” in the same way the plural of hoof as in part of a horse is hooves.
According to Wiktionary, both seem to be correct, but ‘roofs’ is the common variant.
Modern EVs such as Teslas have a high power consumption, much higher than some PV panels on the roof could deliver. Thus, it would only increase the weight of the car while not significantly increasing their range.
If you look closely on the upper picture in this reply, you can see, that there is only a 6-pin connector, the 2 extra soldering points are unused.
Seconded. If the RAM is not compatible or properly placed, the PC won’t do anything.
Looking at the Asrock product page, there is only an additional 8-pin-connector at the top left, no 4 6-pin.
When I had the issue with mariadb demon been killed, I think either in dmesg or syslog there was an entry reading "Out of memory: Kill process… " or similar.
Then, maybe, Baikal a Cal-/ Card-DAV server is what you are searching for.
So jail is for custody. Thank you.
What is the difference between a jail and a prison? As a non-native speaker I’ve learned that they are synonyms.
The EM waves of near spectra, UV and IR, are commonly often referred to as ‘light’ as well. Wikipedia even states:
In physics, the term “light” may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light.
Which fits to my perception of physicists, where in astronomy every element starting at Lithium is referred to as ‘metal’.
You’re welcome.
All EM waves are photons.
When X or gamma ray photons interact with matter, e.g. by Compton scattering, i.e. hitting electrons of an atom. Thereby the photons loose discrete amounts of energy, leading to an increase of their wavelengths, and the electrons are then lifted on corresponding higher energy levels. When the electrons ‘fall’ back onto their base levels, additional photons are emitted.
Microwave photons, however, have to low energy for this kind of interaction. They e.g. induce vibrations and oscillations of molecules which is perceived as a temperature increase.
Then, as I understand, both lasers produce beams of the same intensity (photons per area) and with the same cross section area, i.e. the number of emitted photons per unit of time is identical, the blue laser delivers more power than the red one as tobogganablaze already wrote, since blue light (high frequency, short wavelength) photons have higher energy than red light photons (low frequency, long wavelength). And the rest is up to the absorption properties of the material hit by the laser.
If you really consider reading Mein Kampf, don’t.
Yes, I just checked again (~ 21:25), they claim to place one stone every 20 s which is supposedly three times faster than the ancient egyptians did. However, they did not place one stone at a time, but several at different positions.
Estimated: 2.6 million stones/(20 y × 365 d/y × 12 h/d) = 30 stones/h