What products are worse than they should be with today's technology?
I'm going to say toilet paper. It should be moisturized,scented, and biodegradable so you can shit out side more often.
Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!
shin-bangWhere are you getting this information about the 1 ton and 500miles? I may be wrong, but those numbers and 1 gallon of what? Diesel? does not sound remotely realistic? If you could give me a source I would believe but idk I'm skeptical on that statement
S.J.Whttp://www.factcheck.org/2008/07/fuel-efficient-freight-trains/
BenWhitthe technogology for mass producing razor blades. how the fuck can 5 of them costs 30 dollars
RusticlesYeah, I was pretty impressed when I started looking into it. I'm guessing but I think the wheels and track are pretty low friction comparatively to tires and highway, also the electric system is very efficient and can generate 100% torque at 0 rpm
Dobberhttp://www.dollarshaveclub.com/
RusticlesYeah, I was pretty impressed when I started looking into it. I'm guessing but I think the wheels and track are pretty low friction comparatively to tires and highway, also the electric system is very efficient and can generate 100% torque at 0 rpm
MACAQUEYup. Steel wheels on a steel track have almost zero rolling friction. Once you accelerate the train to speed the only power you need is to overcome energy loss due to friction and air resistance, and to climb hills. So on flat ground a freight train requires way less power than a car/semi/boat etc.
daOysterThe coefficient of friction between the wheels and the tracks is pretty low. However I believe the force of friction is found by Multiplying the normal force by the coefficient of friction. And everyone knows trains are fucking heavy. So the force of friction remains pretty decent I believe. You wouldn't want a low force of friction applied to the wheels and tracks. The wheels would just spin out and you wouldn't go much anywhere. Same for hills, if you had a low force of friction, you'd never make it up. Plus that force is being distributed across the wheels on a very fine contact point compared to cars. This means the force of friction is probably going to be high.
TL;DR: The coefficient of friction is low between the wheels and tracks, but the force from the friction is very high due to the weight being distributed between all of the wheels on very fine points compared to a car tire. Train wheels don't flex that much. And the fact trains are fucking heavy. High force of friction = good for trains.
BenWhittrue, but I really like my Gillette Mach 3.
ThaLoraxCars-why the hell aren't electric cars supplemented by solar and wind or kinetic energy converters?
Dogs-Why can't they speak English yet?
The education system.
.Frydesk top computers. they're pretty outdated right now. I guarantee that 8-10 years from now nobody will have a desk top computer.
daOysterThe coefficient of friction between the wheels and the tracks is pretty low. However I believe the force of friction is found by Multiplying the normal force by the coefficient of friction. And everyone knows trains are fucking heavy. So the force of friction remains pretty decent I believe. You wouldn't want a low force of friction applied to the wheels and tracks. The wheels would just spin out and you wouldn't go much anywhere. Same for hills, if you had a low force of friction, you'd never make it up. Plus that force is being distributed across the wheels on a very fine contact point compared to cars. This means the force of friction is probably going to be high.
TL;DR: The coefficient of friction is low between the wheels and tracks, but the force from the friction is very high due to the weight being distributed between all of the wheels on very fine points compared to a car tire. Train wheels don't flex that much. And the fact trains are fucking heavy. High force of friction = good for trains.
nocturnalhttps://www.newschoolers.com/videos/watch/770369/Humans-Need-Not-Apply
crotchventThe range on most electric cars is terrible and solar and wind energy is super expensive and not that efficient. Plus solar panels vaporize the birds.
BenWhitthe technogology for mass producing razor blades. how the fuck can 5 of them costs 30 dollars
APSheWantsTheDelectric car technology should be way ahead of where it is. Fuck tha oil companies.
ThaLoraxWtf are you smoking? Solar vaporizing birds? Lay off the krokadyl man.
The entire point of my point was that solar, wind and kinetic energy EXTENDS the range of the car.... the technology is there, but for whatever reason it's not readily available yet.
ThaLoraxWtf are you smoking? Solar vaporizing birds? Lay off the krokadyl man.
The entire point of my point was that solar, wind and kinetic energy EXTENDS the range of the car.... the technology is there, but for whatever reason it's not readily available yet.
TommyDcereal boxes, why can't we reseal those bags yey?
MLJWith solar power, I could see how that would work, but with wind are you proposing having a little turbine on the top of the car, or something along those lines? You realise that that would just increase friction so much that it would end up using more energy than it creates?
crotchventThe range on most electric cars is terrible and solar and wind energy is super expensive and not that efficient. Plus solar panels vaporize the birds.
AnathemaReligion.
crotchventThe range on most electric cars is terrible and solar and wind energy is super expensive and not that efficient. Plus solar panels vaporize the birds.
Rusticlestransmissions with no moving parts
The referenced post has been removed.
M-U-DI'd like to see this, LOL.
daOysterOne thing that has always bothered me was why they don't make electric hybrids that have a pure electrical drive train and use a generator to supplement a battery that could also power the car a far ways. The Tesla Model S has a frunk that you could totally fit a gas powered generator in. Add some ventilation and fire proofing and just plug it into the charging circuit. Might lose some initial range due to the heavier weight, but you'll gain it in the range the gas power adds. And then use the gas power as fall back instead of electric fall back.
eheathYeaahhh, nope.
The referenced post has been removed.
crotchventWould you care to elaborate?
dodgeTesla?
The referenced post has been removed.
RusticlesYou probably already have if you've seen a train or a heavy haul truck. Electric motors can vary their speed without any moving transmission parts, no clutch and can add significant brake power with out friction with an inverter and dynamic braking