labawi

61 ms·

571.
by labawi 7y ago
Study mentions EU and source company has offices in Stokenchurch, UK and Stuttgart, Germany. I doubt they tested with studded tires and called it typical. They did test with brand new tires - that's the likely source. "Emissions A
572.
by labawi 7y ago
> stuck on the pavement and washed into the ditch with every rain? This is also an important problem - there is a lot of synthetic rubber particulate in waterways and oceans - a notable fraction of all microplastics.
573.
by labawi 7y ago
They fitted brand new tires and called it a read world test, as if people get new tires every week. Then they measured particulate weight and compared it to ICE emission regulation as if weight was the deciding factor: 5800 ug of rubber par
574.
by labawi 7y ago
Are you talking about non-PM (particulate matter) pollution such as NOx, which comes from exhaust but can create ozone?
575.
by labawi 7y ago
I think synthetic rubber is considered to be microplastics when small.
576.
by labawi 7y ago
When built properly, roads are quite resistant to the elements, though the execution is often culture-dependent. Roads for light loads can be built much cheaper.
577.
by labawi 7y ago
Electron is not reusable, so expandable mode is a fairer comparison.
578.
by labawi 7y ago
> epigenetic markers .. You influence .. and pass on to .. grandchildren (as women..) AFAICT, a woman significantly influences markers on the eggs (future grandchild) developing in her child (fetus/embrio) in her womb, but at the sa
579.
by labawi 7y ago
The half-DNA of eggs is selected as they divide from ancestor cells. Eggs of a woman (baby/fetus) develop while in mother's womb, but they are more immediately inside the fetus, are formed from the cells of the fetus and are desce
580.
by labawi 7y ago
I think the instantaneous fuel consumption at take-off vs. a very long glide down could in fact be 1000x, but is at least 100x. So I ask, what do your numbers represent? EDIT: "747-400 has eight fuel tanks, with a combined capacity of
581.
by labawi 7y ago
Generalizing total plane consumption from instantaneous consumption doesn't seem like a good idea. Their engines have high dynamic range between take-off, climb, steady flight and glide. 4.5l/s (1gal/s) seem like a lot, would
582.
by labawi 7y ago
On our train network, you can buy paper ticker anonymously, or you can buy e-tickers with your name on it. They don't really need your name to reasonably prevent fraud / reuse, they don't even check your name/id. GDPR sa
583.
by labawi 7y ago
Some places only took paper - prepaid tickets you (possibly) validated in machines and paper monthly passes. Other places would have a driver and a conductor for paying/checking tickets. Neither of those involved the bus waiting for pe
584.
by labawi 7y ago
> Is WireGuard faster than other VPN solutions? > ChaCha20 is a stream cipher which are easier to implement in software. They encrypt one bit at a time. Block ciphers like AES encrypt a block of 128 bits at a time. .. Wow. I'm av
585.
by labawi 7y ago
Thank you, I think I understand, but disagree on terminology. Leap seconds are not excluded from number of seconds since Unix epoch, interpreted on a physical, TAI, UTC, typical local time scales. However, they are indeed excluded from &quo
586.
by labawi 7y ago
AFAICT leap seconds are announced about 6 months in advance (January/June). How would you process times that are to occur after a leap second that may or may not be? You could store something as '2022-02-02 02:22:22 UTC', but
587.
by labawi 7y ago
What does that mean and how would that work? AFAIK, unix time skips a beat or repeats itself to remain in alignment with UTC, and just keeps chugging along.
588.
by labawi 7y ago
> Unix time also ignores leap seconds hence it counts the number of seconds that would have elapsed, if they didn't exist. In effect, it's timescale has time that never happened, and time that happened twice.
589.
by labawi 7y ago
> MUCH more energy efficient (you only heat the cookware, not the air around it) They can be even more efficient, if you put insulation between the glass and your cooking pot. The pot is about 1cm from the coil even when directly on the
590.
by labawi 7y ago
Former discussion was about sidewalks, so I wanted to be explicit that having a 40km/h speed limit for cars while sending cyclists to a shared cyclepath/sidewak at 10km/h is not a solution. I fully agree with displacing cars.
591.
by labawi 7y ago
AFAIK, syntax is: let variable_name [: type] = value[(i|u|f)bits]; In rust, 123l is written 123i64 or 123i32 (also 123_i32, or 1_2_3i32), depending on what 123l actually means. I don't actually use rust, but it seems very clear and obv
592.
by labawi 7y ago
> And that then depends on the price per area of storage that you pay. It also depends on your cash flow / economic considerations - you may not wish to have 1 M$ in merchandise sitting in storage, waiting for it to be sold in about
593.
by labawi 7y ago
> .. good track record for creating prosperity. Please don't forget to qualify you mean economic prosperity. It's a wholly different matter than happiness, health etc. The correlation is positive (I guess) but far from 100%. F
594.
by labawi 7y ago
Cars can certainly share cycle paths, they just need to ride slower, the paths need to be wide, and they should be easy to enter and exit in the case you need to ride around groups of cyclists. Pedestrian areas, yes - people usually don&#x2
595.
by labawi 7y ago
When it's cheaper to keep refilling an MRI scanner that boils off lots of helium, than buying one that loses only a little bit, then yes, you use a lot of helium. It's not like we haven't discovered higher temperature superco
596.
by labawi 7y ago
> Time on MRI scanner .. is a limited resource. It's a limited resource similar to houses and carpenters. If it is permitted and there is funding, more can be built/trained.
597.
by labawi 7y ago
If a test has 5% false-positive rate, you can't just test 5 times and expect to have a <0.000001 false positive rate, maybe not less than 1% or even 4% - depends on the test and how you repeat it. If they test you for antibodies, an
598.
by labawi 7y ago
It can suffice to marry the girl after rape (not sure of country and specifics).
599.
by labawi 7y ago
> France .. produce 5GT of CO2 per person. 5 GT (5 000 000 T) is unfathomably large. They produce about 5T = 5000 kg CO₂ / person / year, which is 5 · 12 / (12+2·16) = 1.4 ton of carbon / coal or 1.7 m³ = 1700 l of d
600.
by labawi 7y ago
In linear space (or should I say coding), operations like +, -, * <num>, average, a * 0.1 + b * 0.9 .. have a consistent, reasonable meaning with direct physical relevance. It is simple and preferable to calculate with linear values,

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