Sadly, this monastery has recently been severely damaged by russian drone strikes.

https://en.wikipedia.org/wiki/Kyiv_Pechersk_Lavra

The larger the tyre (diameter), the higher the top speed achievable practically

A larger wheel allows a smoother ride as a smaller wheel and thus allows for higher speeds on uneven ground. They also have a lower rolling resistance as their curvature (“roundness”) is smaller and thus, for identical inflation, need to be deformed less to obtain the same area of contact (which on hard surfaces, is defined by the load onto the tyre and its inflation).

Wider tyres have a lower rolling resistance than narrow tyres when the internal pressure is identical. Thus, wider tyres can be driven with less inflation.

See also here for more explanation:

https://www.schwalbe.com/en/technology-faq/rolling-resistance/

the magnitude of the rotational inertia […] is roughly the same or maybe a bit higher on larger wheels that are probably heavier

The rotational moment of inertia increases a lot due to the larger diameter, J ~ m r^2. Even if the masses were the same, the relatively heavy tyre and the rim are further away from the wheel hub.

Edit: If we neglect the wheel hub and the spokes, the mass of the tyre and rim scales with the radius, m ~ r, and thus J ~ r^3 .

For a road bike, you want to minimize the contact area of the tire with the road so you have very narrow tires and inflated a lot so that they don’t deform much under your weight.

It’s slightly different:

• As the top speed of a road bike makes air resistance (drag) an important factor, road bikes use narrow tyres, resulting in a smaller silhouette area than a wide tyre (on a rim of the same diametre) would have.

• As the rolling resistance increases with the length of the contact area, with the same internal pressure (inflation), i.e. same area of contact, narrow tyres have a higher rolling resistance than wide tyres. Thus, to (over-)compensate and decrease the length of the area of contact the internal pressure of road bike tyres is much larger than of normal, wider tyres.

As a result, narrow tyres of road bikes have smaller drag and due to over-compensation by inflation an even lower rolling resistance than standard bike tyres.

Edit: This over-compensation is possible for road bikes, as hard surfaces (asphalt, concrete, pavement) allow a high surface pressure.

For tyres of dirt bikes not sinking deeply into soft ground (gravel, soil), they need to have a low ground pressure, i.e. a large area of contact and low inflation and thus, cannot be narrow, but have to be wide.

… are the same Cher

That’s a ship of Theseus kind question.

The downside of dried beans, pasta, etc. is that the need to be cooked, beans even for a long period of time. Canned food however can even be eaten cold without heating up.

Vinegar is supposedly relatively aggressive and can harm seals. Citric acid is better.

I never had duvet covers do this. Fitted sheets however 💀. Now, I put them into a big laundry bag I’ve bought at a large coffee roastery.

They measure the wavelength of “thermal” photons and then use e.g. Wien’s law to calculate the temperature that has caused their emission.

Edit: T = 10^8 K correspond to f = 10^18 Hz which is in the X-ray part of the spectrum.

We have similar tabs in Germany to indicate that the vehicle registration plate is valid, the car is insured and the tax is payed. However, they are manufactured in a way that makes it impossible to remove them in one piece.
If you don’t pay you vehicle tax or, even worse, don’t pay your insurance, some official will search for your car and scrape the tabs off.

In Sweden, you don’t need the tab to guarantee that the plate is valid, as the plates come directly from Trafikverket and have watermarks all over. However, for the other two reasons, tax and insurance, the system in Sweden relies basically on hopes and prayers. Even a former professor at my department at a Swedish university drove his car without insurance.

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Just the alt text, @user@instance, should do both, tag the user and direct any reader to the local copy of instance/u/user on their own instance.

That’s a good point.

No, I just added the translation “big and small bear” which I forgot before.

Nothing to do with the presence of bears. The stellar constructions aren’t actual bears.

The name Arctic has nothing to do with the presence of bears, it got its name from either of the two star constellations Ursa Major or Ursa Minor (Edit: meaning big and small bear), where ursa is arctos in Greek, which are both present in the northern hemisphere and tge latter even contains the celestial north pole.

https://en.wikipedia.org/wiki/Arctic

If you look at the speed, maxing out at 140 km/h except on the long straight, it’s likely at least some tuning going on.

Back then domestic cats were more ferocious. It took until Roman days when the modern tame variant occurred and quickly superseded its predecessor.

Why?

Disappointingly none in Ohigho.