cross-posted from: https://lemmy.ml/post/371128
> Nursing an injury and found instructions on a skater site. The skater site said: "i know you won't go to a dr since you're a skater" Why don't they go to drs?
> I don't go to drs due to being poor.
cross-posted from: https://lemmy.perthchat.org/post/29780
> Surely we can't fight the military since they have tanks and planes. I mean, we could vietnam it at massive casualties, but that's pretty suboptimal. I'd rather do like lenin's build a militia strategy since at least a militia might have like anti air guns.
keeping up with what is political correct is very difficult and it's easy to get cancelled. Which sounds like i'm sprewing rightwing bs, but if someone knows how to keep up with the trends let me know. (That isn't spend my life on twitter trending hashtags)
A (series) hybrid car is technically the similar to a petrol car - they use the same compnents. But a hybrid is actually simpler to build, and higher performance. Why have manufacturers been concentrating on petrol-only cars for decades?
In a petrol car, the petrol engine drives the wheels and the battery charger, and the electric motor just starts the engine. In a hybrid, the motor drives the wheels and the engine only charges the battery.
This means your engine is much smaller and your motor and battery are bigger. Because an electric motor can deliver power efficiently over a high range of RPM, this also means you don't need a carburator or gearbox, and the engine design - the difficult part of car design - is much simpler. The whole system becomes more compact, more efficient, higher performance, and cheaper.
Trains and ships have been series-hybrid for many decades. Why not cars?
I've been wondering why this is not done. It seems so obvious, so there must be a good reason.
When doing covid testing, ask people questions like
- how many times did you get a bus this week
- or visit a hairdresser
- does your office/apartment have AC or natural ventilation
- do you share accommodation like in a barracks, retirement home, hostel
Then you or all this in MS excel and run a correlation. Of positives, how many people did X or Y or both. Of negatives, how many petiole did X or Y or both. The statistical functions tell you which patterns are important.
This instantly tells you the risk of each activity. It can guide people and authorities.
1. People could be given a target, normalised to the reproduction number - all your activities this week must add to less than 1.
2. Authorities can know the exact statistical risk of an activity. Exactly how big will be the effect of closing pubs, or hairdressers, or taking barman over 50 or of work? You can have as granular data as you like.
If you look up micromorts on Wikipedia it's a similar idea.
All we know about covid risks, everything news channels and governments repeat in their echo chambers, is either extrapolated from other diseases, anecdotal, or speculation. We could easy grasp the true exact data, with as much granularity as needed, with no extra effort from what is done today.
This should be the headline news. Instead of "cases went up this week" we could know that "Cases among 40s-50s linked to AC ventilated pubs, where people stayed 1 hour, went up this week"