Things you always wanted to know the answer to [Vol. 3]
Discussion
FiF said:
Feirny said:
Should've probably worded that a little better, I meant famous. I knew of the majority of that list, Mabbutt mainly but no others.
The most high profile there I know is Nacho.
Come off it, what about 5 times Olympic gold medallist Sir Steve Redgrave.The most high profile there I know is Nacho.
Interestingly most of the ones on that list are type 1. Not surprising really.
grumbledoak said:
Willy Nilly said:
Max Torque will be along in a minute, but they don't need them. I THINK, you get 100% torque at zero rpm with electric motors.
And the motors are quite happy to run at the speed of the wheels.Feirny said:
FiF said:
Feirny said:
Should've probably worded that a little better, I meant famous. I knew of the majority of that list, Mabbutt mainly but no others.
The most high profile there I know is Nacho.
Come off it, what about 5 times Olympic gold medallist Sir Steve Redgrave.The most high profile there I know is Nacho.
Interestingly most of the ones on that list are type 1. Not surprising really.
Still think it's interesting that if you look at the list of diabetic sports people, not just footballers, very very few are type 2.
FiF said:
Feirny said:
FiF said:
Feirny said:
Should've probably worded that a little better, I meant famous. I knew of the majority of that list, Mabbutt mainly but no others.
The most high profile there I know is Nacho.
Come off it, what about 5 times Olympic gold medallist Sir Steve Redgrave.The most high profile there I know is Nacho.
Interestingly most of the ones on that list are type 1. Not surprising really.
Still think it's interesting that if you look at the list of diabetic sports people, not just footballers, very very few are type 2.
Type 2 isn't going to be common in athletes with their fitness levels.
lord trumpton said:
Why don't electric cars have gears?
Also, is there development of electric motorbikes?
First question - it's not so simple. Also, is there development of electric motorbikes?
An EV would actually benefit from a transmission with multiple gears since they lose efficiency as they speed up. Friction is the main culprit.
However, its cost and weight.
Formula E cars have gearboxes.
Willy Nilly said:
grumbledoak said:
Willy Nilly said:
Max Torque will be along in a minute, but they don't need them. I THINK, you get 100% torque at zero rpm with electric motors.
And the motors are quite happy to run at the speed of the wheels.EV's don't really need a traditional gearbox the motor and diff arrangement is very simple and can deal with 0 to top speed without the need for a clutch or multiple ratios.
Cold said:
What is it about certain warm weather conditions that disrupt TV broadcast signals? (And who do I complain to?)
This may not be the whole story but:A combination of warm weather and still air can mean that at sunset the higher levels of the troposphere can be cooler than the air closer to the surface. When this happens UHF radio signals that can normally be relied upon to travel in reasonably straight lines and continue through the troposphere into space can be refracted back to earth coming down well outside their usual range. Possibly where a TV station is sharing the same frequency.
Not sure who you can complain to, but get them to shift the heatwave to the weekend while they are fixing it.
Cold said:
What is it about certain warm weather conditions that disrupt TV broadcast signals? (And who do I complain to?)
I was wondering this in the car yesterday about radio signals. However, it only seemed to be Radio 4 which was affected. Which is annoying as that's the only station I listen to. Doing a search showed all the other nationals and locals were being received fine, but Radio 4 practically disappeared. Harumph.98elise said:
Willy Nilly said:
grumbledoak said:
Willy Nilly said:
Max Torque will be along in a minute, but they don't need them. I THINK, you get 100% torque at zero rpm with electric motors.
And the motors are quite happy to run at the speed of the wheels.EV's don't really need a traditional gearbox the motor and diff arrangement is very simple and can deal with 0 to top speed without the need for a clutch or multiple ratios.
Up to the rated speed of the motor, the current through the field windings is high, and the motor will produce maximum torque if requested. To get above the rated speed, the current through the field windings is decreased (they "drag" the rotor to a slower speed, somewhat) which lowers torque output... but the motor keeps outputting the same HP.
A 20 inch wheel at 10,000 rpm has an outer edge travelling in excess of 1100 mph. A reduction gear is definitely required
oobster said:
Is the hole in the ozone layer still a thing to be worried about? I remember this being a big hullabaloo a couple of decades ago, aerosol propelant being changed, fridges and freezers having to be recycled properly etc.
Did it repair itself or what?
It's getting there. A big improvement since the CFC ban; fully sorted by 2050, apparently. Did it repair itself or what?
oobster said:
Is the hole in the ozone layer still a thing to be worried about? I remember this being a big hullabaloo a couple of decades ago, aerosol propelant being changed, fridges and freezers having to be recycled properly etc.
Did it repair itself or what?
Down in Chile there is a spike in skin cancers as the hole is above them and more UV gets through.Did it repair itself or what?
SilverSixer said:
Cold said:
What is it about certain warm weather conditions that disrupt TV broadcast signals? (And who do I complain to?)
I was wondering this in the car yesterday about radio signals. However, it only seemed to be Radio 4 which was affected. Which is annoying as that's the only station I listen to. Doing a search showed all the other nationals and locals were being received fine, but Radio 4 practically disappeared. Harumph.I think that's one for urban legends thread but idk if it's true or not.
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