If you have to use floating point values to store a number, it has inaccuracy. For example a simple penny counter algorithm that needs to break out of a loop when pennies remaining is less than 1 will misbehave when you're trying to check if.01.011 if you stored.01 as a float. It will actually store 0.01 as 0.0999999999995 or something and that will cause the loop logic to fail. If you store in whole integers of pennies, you won't have this problem. So this concept of using Flicks allows you to use precise integers to describe frame rate instead of some funky float value that is imprecise.
Here's a story about prosecutors throwing people in jail for talking about prostitution by intimidating them with trumped up charges to get them to plea. Many got fired from their jobs. Others lost their friends and family and one man committed suicide. It's like how some cities resort to public shaming Johns which is such a horrific practice that even 18th century America stopped doing it. http://reason.com/archives/201...
All of these anti-trafficking organizations use Superbowl TV commercials of women and/or child being sold as slaves (which is extremely rare) but if you read what their true goal is, they want to stop all prostitution. They even consider 100% voluntary prostitution as trafficking. Amnesty International has the right solution which is to legalize prostitution so that women aren't forced into the underground where they are victimized by their Pimps and by the Police.
Tim Berners-Lee favored fast lanes which makes him support Pai's position on Net Neutrality. I quoted him 10 years ago here http://www.zdnet.com/article/a.... He said "Net Neutrality is NOT saying that one shouldn’t pay more money for high quality of service. We always have, and we always will."
Tesla can easily meet their claimed acceleration speed on the Roadster 2 with a 100 KWH battery that weighs 1200 lbs. In fact it's easier than hitting their claimed speeds with a 200 KWH battery that weighs 2400 lbs. All lithium Ion batteries can be pushed to 2X or 4X discharge rates to give you 2X to 4X the power. The penalty you pay for pushing the discharge rate is much fewer charge cycles before the battery reaches 50% useful capacity. That doesn't matter for a prototype or demo car but it's completely unacceptable for a production car.
A Tesla has an 85 KWH battery. Assuming close to 6 KG per KWH Lithium Ion battery capacity, we're looking at 1124 lbs. Good luck carrying an 1124 lb payload with a drone.
And yet they admit there are some thermal issues in your cited article. "He also admits that there are still traces of contamination caused by thermal expansion in the system". It still worth noting that these are tiny forces being measured and it's on the order of experimental error rather than useful thrust.
What should be most telling was that this "engine" produced more "thrust" when it was turned off than when it was turned on. That should tell you how stupid this thing is but everyone is so caught up in the "I want to believe" moment that they ignore all the warning signs.
The "thrust" measured by every study is so tiny that it's equivalent to the gravitational attraction of the contraption to your body. There are thermal effects that could explain this tiny thrust. So when the contraption was cooling off, the thermal effects were enough to push the air in a non-symmetric way that it produced a tiny push on the sensors. You could have measured more thrust just blowing on the stupid thing.
The future is 40-Gbps Thunderbolt 3 on USB-C connectors. You have up to 100 watts of power, multiple DisplayPorts, multiple USB 3.1 ports, PCI-e, and potentially 10-Gigabit Ethernet flowing on the same reversible cable. Nobody cares about having a bulky RJ-45 connector once USB-C gets popular. Even today people can easily add Gigabit on their USB 3.0 ports.
Again, using human power to turn a generator to fill a battery is a fool's errand. You're better off doing opportunistic regeneration on downhill and letting the person rest. Forcing a rider to output an extra 50 watts so that you can collect 30 watts in the battery is just idiotic. But the point was that even without regeneration, a single 26550 battery @ 98 gram and a 100 watt motor @ 50 grams is more than enough to win a race.
Don't need 100W for the entire race. Even a short 10 minute boost of 100W assistance from a small 26650 Lithium Ion cell is enough to push a competitor from back of the pack to the front of the pack.
If they can fit battery, brushless controllers, and BLDC motors in a tiny 4 oz RC/Drone, they sure as hell can hide it inside a bike. A 100 watt ESP (Electronic Speed Control) can be extremely tiny and cheap. Do a quick search on Google or Hobbyking.
Regen on flat pedaling is stupid and goes along the lines of a perpetual motion machine. Much of the energy you pedal into the motor is lost in the form of heat and you won't get out what you put in. Reg on downhill would work and you don't need a more complex motor. All Brushless DC motors can regen when they're being forced to turn.
WiTricity has been demoing the only feasible technology (resonant inductive power transfer) since 2009. They can actually reach out a few feet without worrying about getting blocked by clothing or body parts or orientation of the receiver. But the media has forgotten them in favor of utterly unworkable solutions like Ultrasonic Power Transfer which can't go through objects and require exact receiver orientation and alignment to work. https://www.ted.com/talks/eric...
The challenge is whether WiTricity can deliver useful range range and sufficiently shrink the receivers to be thin enough to be in a smartphone. Useful range is likely a few feet which means it's much shorter than a typical cable. We're also looking at a minimum of 50% losses which might be acceptable for a smartphone, but we know there are plenty of people who have no qualms charging their 400 watt HDTV or 40000 watt car like this.
The real revolution we're seeing in smartphone charging is USB-C with a higher Power Deliver profile. Next generation Samsung phones coming out can be charged in around 20 minutes which means a charge rate of 3C. Batteries can be pushed up to 5C to get charge times times down to 12 minutes which means 6 minutes can fill up most semi-discharged smartphones. Fast charging is far more useful than being stuck in a 3-foot area for 2 hours waiting for the phone to fill up.
A pro competitor at Tour de France averages 450 watts. Casual fit rider averages 220. That means having a mere half a horse power would let the casual rider win the Tour de France though you likely wouldn't be able to put in that much battery capacity for the entire ride unless you swapped the battery along the way. For competitive riders, just having a 100 watt motor that can turn on 10 minutes is enough to go from last place to first.
Notch's Mojang was supposedly different from your typical greedy corporation and it was more family. In the end he sold out and left all his employees hanging. Out of that $2500 million dollars, would it be so hard to allocate $50 million into a trust fund such that every one of his 50 employees could have an interest-only income of $50,000 per year indefinitely? Yet he couldn't even sacrifice 2% of his payout?
"what if we eat so much crap food that the wholesome hearty foods stop being produced"
There really isn't a clear line between "wholesome hearty food" and "crap food". The dosage is the problem and some foods like deserts, candy, and chips are just so calorically dense and so tasty that they're almost assured to be overeaten by the majority of people.
At one point the interviewer asks "how much money you gonna save on electricity for 50 computers, $50/year"? It's clear he's never even attempted to do the math. An extra 100 watts in California is going to cost $314.91 per year at the typical rate (above baseline) of 35.949 cents per year. That's just the savings on one computer system much less 50 computers.
Do you have a hypobaric chamber large enough to test a helicopter in flight? Even if you use a quarter scale model, you need a pretty large chamber. Furthermore a scale model doesn't behave the same as a full size unit.
To properly test a prototype, you would need to fly a prototype helicopter (probably with very large rotor and very powerful turbine) to 33,000 meters altitude on Earth to test equivalent atmospheric pressures. The current altitude record for helicopters is only 12,442 meters.
There's another major problem posed by Mars. 96% of the atmosphere is comprised of CO2 and there is only trace amounts of oxygen. That means not only would you have to carry fuel, but you would need to carry your own oxidizer as well which adds a lot of weight.
"A July 1999 IETF specification (RFC 2638) discusses paid prioritization by saying: “It is expected that premium traffic would be allocated a small percentage of the total network capacity, but that it would be priced much higher.” Another specification (RFC 2475) published half a year earlier says that setting different priorities for packets will “accommodate heterogeneous application requirements and user expectations” and “permit differentiated pricing of Internet service.” (An RFC is a policy document, often accepted as standards, published by the IETF.)"
I would also add that the abstract of RFC 2474 says:
“Differentiated services enhancements to the Internet protocol are intended to enable scalable service discrimination in the Internet”
Capacity matters a lot in Wi-Fi as well as cellular data. Very rarely will you see mobile devices be able to leverage 2x MIMO or better because they only have one antenna. Capacity is effective peak performance for most situations. Peak throughput is great for marketing benchmarks and occasionally real life performance when it comes to wireless bridging.
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If you have to use floating point values to store a number, it has inaccuracy. For example a simple penny counter algorithm that needs to break out of a loop when pennies remaining is less than 1 will misbehave when you're trying to check if .01 .011 if you stored .01 as a float. It will actually store 0.01 as 0.0999999999995 or something and that will cause the loop logic to fail. If you store in whole integers of pennies, you won't have this problem. So this concept of using Flicks allows you to use precise integers to describe frame rate instead of some funky float value that is imprecise.
Here's a story about prosecutors throwing people in jail for talking about prostitution by intimidating them with trumped up charges to get them to plea. Many got fired from their jobs. Others lost their friends and family and one man committed suicide. It's like how some cities resort to public shaming Johns which is such a horrific practice that even 18th century America stopped doing it. http://reason.com/archives/201...
All of these anti-trafficking organizations use Superbowl TV commercials of women and/or child being sold as slaves (which is extremely rare) but if you read what their true goal is, they want to stop all prostitution. They even consider 100% voluntary prostitution as trafficking. Amnesty International has the right solution which is to legalize prostitution so that women aren't forced into the underground where they are victimized by their Pimps and by the Police.
Robert does a nice job debunking Tim Wu's editorial. http://blog.erratasec.com/2017...
Tim Berners-Lee favored fast lanes which makes him support Pai's position on Net Neutrality. I quoted him 10 years ago here http://www.zdnet.com/article/a.... He said "Net Neutrality is NOT saying that one shouldn’t pay more money for high quality of service. We always have, and we always will."
Tesla can easily meet their claimed acceleration speed on the Roadster 2 with a 100 KWH battery that weighs 1200 lbs. In fact it's easier than hitting their claimed speeds with a 200 KWH battery that weighs 2400 lbs. All lithium Ion batteries can be pushed to 2X or 4X discharge rates to give you 2X to 4X the power. The penalty you pay for pushing the discharge rate is much fewer charge cycles before the battery reaches 50% useful capacity. That doesn't matter for a prototype or demo car but it's completely unacceptable for a production car.
A Tesla has an 85 KWH battery. Assuming close to 6 KG per KWH Lithium Ion battery capacity, we're looking at 1124 lbs. Good luck carrying an 1124 lb payload with a drone.
Final Cut Pro runs better on Mac than on a PC. News at 11.
Ah yes, the good of "Reversal of Proof" logic fallacy strikes again.
And yet they admit there are some thermal issues in your cited article. "He also admits that there are still traces of contamination caused by thermal expansion in the system". It still worth noting that these are tiny forces being measured and it's on the order of experimental error rather than useful thrust.
What should be most telling was that this "engine" produced more "thrust" when it was turned off than when it was turned on. That should tell you how stupid this thing is but everyone is so caught up in the "I want to believe" moment that they ignore all the warning signs.
The "thrust" measured by every study is so tiny that it's equivalent to the gravitational attraction of the contraption to your body. There are thermal effects that could explain this tiny thrust. So when the contraption was cooling off, the thermal effects were enough to push the air in a non-symmetric way that it produced a tiny push on the sensors. You could have measured more thrust just blowing on the stupid thing.
The future is 40-Gbps Thunderbolt 3 on USB-C connectors. You have up to 100 watts of power, multiple DisplayPorts, multiple USB 3.1 ports, PCI-e, and potentially 10-Gigabit Ethernet flowing on the same reversible cable. Nobody cares about having a bulky RJ-45 connector once USB-C gets popular. Even today people can easily add Gigabit on their USB 3.0 ports.
Again, using human power to turn a generator to fill a battery is a fool's errand. You're better off doing opportunistic regeneration on downhill and letting the person rest. Forcing a rider to output an extra 50 watts so that you can collect 30 watts in the battery is just idiotic. But the point was that even without regeneration, a single 26550 battery @ 98 gram and a 100 watt motor @ 50 grams is more than enough to win a race.
Don't need 100W for the entire race. Even a short 10 minute boost of 100W assistance from a small 26650 Lithium Ion cell is enough to push a competitor from back of the pack to the front of the pack.
If they can fit battery, brushless controllers, and BLDC motors in a tiny 4 oz RC/Drone, they sure as hell can hide it inside a bike. A 100 watt ESP (Electronic Speed Control) can be extremely tiny and cheap. Do a quick search on Google or Hobbyking.
Regen on flat pedaling is stupid and goes along the lines of a perpetual motion machine. Much of the energy you pedal into the motor is lost in the form of heat and you won't get out what you put in. Reg on downhill would work and you don't need a more complex motor. All Brushless DC motors can regen when they're being forced to turn.
WiTricity has been demoing the only feasible technology (resonant inductive power transfer) since 2009. They can actually reach out a few feet without worrying about getting blocked by clothing or body parts or orientation of the receiver. But the media has forgotten them in favor of utterly unworkable solutions like Ultrasonic Power Transfer which can't go through objects and require exact receiver orientation and alignment to work. https://www.ted.com/talks/eric...
The challenge is whether WiTricity can deliver useful range range and sufficiently shrink the receivers to be thin enough to be in a smartphone. Useful range is likely a few feet which means it's much shorter than a typical cable. We're also looking at a minimum of 50% losses which might be acceptable for a smartphone, but we know there are plenty of people who have no qualms charging their 400 watt HDTV or 40000 watt car like this.
The real revolution we're seeing in smartphone charging is USB-C with a higher Power Deliver profile. Next generation Samsung phones coming out can be charged in around 20 minutes which means a charge rate of 3C. Batteries can be pushed up to 5C to get charge times times down to 12 minutes which means 6 minutes can fill up most semi-discharged smartphones. Fast charging is far more useful than being stuck in a 3-foot area for 2 hours waiting for the phone to fill up.
A pro competitor at Tour de France averages 450 watts. Casual fit rider averages 220. That means having a mere half a horse power would let the casual rider win the Tour de France though you likely wouldn't be able to put in that much battery capacity for the entire ride unless you swapped the battery along the way. For competitive riders, just having a 100 watt motor that can turn on 10 minutes is enough to go from last place to first.
Notch's Mojang was supposedly different from your typical greedy corporation and it was more family. In the end he sold out and left all his employees hanging. Out of that $2500 million dollars, would it be so hard to allocate $50 million into a trust fund such that every one of his 50 employees could have an interest-only income of $50,000 per year indefinitely? Yet he couldn't even sacrifice 2% of his payout?
"what if we eat so much crap food that the wholesome hearty foods stop being produced"
There really isn't a clear line between "wholesome hearty food" and "crap food". The dosage is the problem and some foods like deserts, candy, and chips are just so calorically dense and so tasty that they're almost assured to be overeaten by the majority of people.
There's up to a $150 student discount for the Surface 3.
At one point the interviewer asks "how much money you gonna save on electricity for 50 computers, $50/year"? It's clear he's never even attempted to do the math. An extra 100 watts in California is going to cost $314.91 per year at the typical rate (above baseline) of 35.949 cents per year. That's just the savings on one computer system much less 50 computers.
Do you have a hypobaric chamber large enough to test a helicopter in flight? Even if you use a quarter scale model, you need a pretty large chamber. Furthermore a scale model doesn't behave the same as a full size unit.
To properly test a prototype, you would need to fly a prototype helicopter (probably with very large rotor and very powerful turbine) to 33,000 meters altitude on Earth to test equivalent atmospheric pressures. The current altitude record for helicopters is only 12,442 meters.
There's another major problem posed by Mars. 96% of the atmosphere is comprised of CO2 and there is only trace amounts of oxygen. That means not only would you have to carry fuel, but you would need to carry your own oxidizer as well which adds a lot of weight.
"A July 1999 IETF specification (RFC 2638) discusses paid prioritization by saying: “It is expected that premium traffic would be allocated a small percentage of the total network capacity, but that it would be priced much higher.” Another specification (RFC 2475) published half a year earlier says that setting different priorities for packets will “accommodate heterogeneous application requirements and user expectations” and “permit differentiated pricing of Internet service.” (An RFC is a policy document, often accepted as standards, published by the IETF.)"
I would also add that the abstract of RFC 2474 says:
“Differentiated services enhancements to the Internet protocol are intended to enable scalable service discrimination in the Internet”
http://www.digitalsociety.org/...
Capacity matters a lot in Wi-Fi as well as cellular data. Very rarely will you see mobile devices be able to leverage 2x MIMO or better because they only have one antenna. Capacity is effective peak performance for most situations. Peak throughput is great for marketing benchmarks and occasionally real life performance when it comes to wireless bridging.