Brexit, for once some facts.

Danidl

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In pure mechanical terms, the amount of energy required to increase a vehicle’s velocity from A m/s to B m/s is the same regardless of the time taken. But, higher rates of acceleration will require the battery to deliver a higher electrical current, resulting in greater energy losses due to the internal resistance of the battery (loss = I x I x R, where I = current draw from the battery and R = internal battery resistance). In other words, if you sink your right boot into the carpet on the exit from every bend and away from every set of traffic lights, you are going to deplete the battery of more energy than if you had accelerated more gently. :)
These are all second and third order effects.
 

oyster

Esteemed Pedelecer
Nov 7, 2017
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They have however started to mention booster jabs being offered to everyone over 50 starting in September, they have also being doing trials mixing and matching different vaccines and that it is quite likely if your first two doses were AZ then your booster could be Pfizer.
It was said quite early on that a third dose using the same carrier (an adenovirus for AstraZeneca) was possibly a bad idea. Reason being that you will have become sensitised to that - not just the Covid-19-alike bits. Hence more likely to suffer side effects. True or not, my instinct suggests a different vaccine for a booster.
 
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oldgroaner

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After a search I have uncovered a song that exactly describes the attitude of Brexit voters
 

oyster

Esteemed Pedelecer
Nov 7, 2017
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These are all second and third order effects.
I don't care what order the effects - in the real world, fast acceleration requires more energy. And affects the design and construction of vehicles able to achieve that rather than more sedate acceleration. From tyres, through sustainable current, battery cooling, and on and on.
 

flecc

Member
Oct 25, 2006
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I don't care what order the effects - in the real world, fast acceleration requires more energy. And affects the design and construction of vehicles able to achieve that rather than more sedate acceleration. From tyres, through sustainable current, battery cooling, and on and on.
I can put a figure on it. A couple of weeks after buying my new Nissan Leaf in 2018, I set out on a range test. Using only Normal mode, no Eco, I drove normally continuously using mainly B roads and known lanes but some short A road stretches, eventually getting within reach of home as the battery was getting low, but continuing on local loops until reaching the "Urgent Charge Now" dash message, meaning only 10 + 3 miles left to totally empty. At that point I'd covered 162 miles.

Just over a week later I repeated the test but this time driving aggressively. Here in the South East below London speed doesn't come into that since all the roads where speed could be possible are infected with speed limits to the degree that the majority of drivers just convoy at around 40 mph. And on the back lanes in the country the nature of them prevents high speeds. I used the same Normal mode and similar routes and as well as using aggressive maximum acceleration I managed to include two twisty climbs to the top of the North Downs. The terminal distance covered at the "Charge Now" point was 146 miles.

Both were warm Summer days, so the loss due to aggressive driving was 10%, but with the gain of a lot of fun doing the second test.

The big loss of course as Danidl says is from driving at speed such as on motorways and I've also tested that to a small degree. The difference in range between cruising at 65 or at 75 is quite dramatic, all out of proportion to the time saved.
.
 

Woosh

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May 19, 2012
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He's the wrong man for the job, he has no easily recognised motivation. They need a leader, someone who choses which of the two paths to take and then takes the party forward on that by sheer force of personality and will power. Blair did it successfully for a while but then messed up.

Starmer has the wrong idea, it's not about beating the Tories, they're an irrelevance. It's about inspiring party and people to follow, and I don't think he could inspire anyone.
.
he respects legal principles, he has shown courage in dealing with Labour's traditional anti-semitism, he's shown again and again at the HoC dispatch box that his arguments are well founded and reasoned.
I can see him slowly transforming Labour into an electable party.
 
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oyster

Esteemed Pedelecer
Nov 7, 2017
10,422
14,609
West West Wales
I can put a figure on it. A couple of weeks after buying my new Nissan Leaf in 2018, I set out on a range test. Using only Normal mode, no Eco, I drove normally continuously using mainly B roads and known lanes but some short A road stretches, eventually getting within reach of home as the battery was getting low, but conmtinuing on local lopps until reaching the "Urgent Charge Now" dash message, meaning only 10 + 3 miles left to totally empty. At that point I'd covered 162 miles.

Just over a week later I repeated the test but this time driving aggressively. Here in the South East below London speed doesn't come into that since all the roads where speed could be possible are infected with speed limits to the degree that the majority of drivers just convoy at around 40 mph. And on the back lane in the country the nature of them prevents high speeds. I use the same Normal mode and similar routes and as well as using aggressive maximum acceleration I managed to include two twisty climbs to the top of the North Downs. The terminal distance covered at the "Charge Now" point was 146 miles.

Both were warm Summer days, so the loss due to aggressive driving was 10%, but with the gain of a lot of fun doing the second test.

The big loss of course as Danidl says is from driving at speed such as on motorways and i've also tested that to a small degree. The difference in range between cruising at 65 or at 75 is quite dramatic, all out of proportion to the time saved.
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I can see the difference in fuel consumption due to speed very clearly in my ICE car - its instantaneous, journey and average fuel consumption figures all being readily available. Yes, I agree, 65 to 75 makes a pronounced difference.
 

flecc

Member
Oct 25, 2006
53,128
30,555
he respects legal principles, he has shown courage in dealing with Labour's traditional anti-semitism, he's shown again and again at the HoC dispatch box that his arguments are well founded and reasoned.
You could also have been speaking about Tony Benn on the benches or even Michael Foot at the dispatch box.

I can see him slowly transforming Labour into an electable party.
I'm depending on the Tories doing that.
.
 
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Woosh

Trade Member
May 19, 2012
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You could also have been speaking about Tony Benn on the benches or even Michael Foot at the dispatch box.
the difference is neither Foot or Benn was electable in their time. They had oratory skills but that's all it was.
Look at who the Corbynites like to replace Starmer with: Angela Rayner.
Can you imagine PMQs with BJ and Rayner???
 
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Woosh

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May 19, 2012
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Ms Rayner, who was a leading member of Jeremy Corbyn's shadow cabinet, used her questions to tackle Mr Johnson on pay for care workers, coronavirus testing and the rules on who can accompany women during labour.
Rayner repeats the typical attacks that sound like a Corbyn's past performance with similar side stories.
She has nothing to add to the debate. Not even oratory skills.
Just a sitting duck.
 

flecc

Member
Oct 25, 2006
53,128
30,555
Rayner repeats the typical attacks that sound like a Corbyn's past performance with similar side stories.
She has nothing to add to the debate. Not even oratory skills.
Just a sitting duck.
"Sir Keir could have asked his questions to the PM via zoom, but Labour opted to give Ms Rayner an opportunity to stand in for him in the chamber, the BBC understands.
After Prime Minister's Questions, he tweeted praise of his colleague, describing her performance as "fantastic"."
.
 
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Woosh

Trade Member
May 19, 2012
20,214
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After Prime Minister's Questions, he tweeted praise of his colleague, describing her performance as "fantastic"."
of course he was happy saying that!
 
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Danidl

Esteemed Pedelecer
Sep 29, 2016
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Yes from what I understand, vaccinated people can still catch it and pass it on, and yes you can still become seriously ill with Covid even if you have had both vaccines.

The figures I have seen mentioned a few times are as follows.
If you have had two doses of the AZ vaccine then you have a 92% chance of not needing to go to hospital if you get Covid. If you have had two doses of Pfizer then you have a 96% chance of not needing to go to hospital if you get Covid.

These figures have been around some time and therefore I suspect they were compiled before Delta became the dominant variant in the UK.

Other figures I have seen in relation to the Delta variant suggest that it is around 60% more transmissible than the Kent variant (which was in turn more transmissible than the original) and that you are twice as likely to end up in hospital after an infection than you were if you had the Kent variant.

I have a feeling that the Delta variant may be able to get past the protection of people vaccinated 6 or so months ago and I think the Government know this but don't want to talk about it while they still have so many people needing their first or second doses.

They have however started to mention booster jabs being offered to everyone over 50 starting in September, they have also being doing trials mixing and matching different vaccines and that it is quite likely if your first two doses were AZ then your booster could be Pfizer.
The Germans suggest that mix and match is a better strategy than 2 straight Pfizers or AZ
 

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