AFAIK, sideslip approaches aren't taught anymore on all but the lightest aircraft as this is a risky maneuver (reduced lift, loss of control,...) The standard way to stay in coordinated flight, which mean that during the approach, the trajectory is aligned with the runway but the nose is not. At the last moment, the pilot aligns the nose with the runway and momentum keeps the plane in the correct trajectory for the touch down.
Dirt cheap? Seriously? How much gold is there in your dirt? Aviation in general is ridiculously expensive. Large airliners go into the hundreds of millions, which make them about 100 times more expensive than cars, pound for pound. I work in the field and if there is a word that doesn't describe the industry, it's "cheap". The reason flying is cheaper nowadays is not because planes are built cheaper. That's because they are more efficient and require less maintenance. Plus everything that is not directly related to the plane itself such as : cabin crew, airport fees, service, taxes, yield management, etc...
Cash is obviously very useful in the black market, and I suspect fighting against it is a primary motivation for going cashless. The interesting question becomes : what will replace cash in the black market? Prepaid cards, cryptocurrencies, foreign cash, precious metals...?
hard drives breaks; needs to buy whole new computer...
It used to be a ridiculous idea, not anymore. If you look at the new macbooks, the SSD is soldered to the motherboard and that's if you can access the motherboard at all. And even on laptops where you can actually change the hard drive, more and more often, it involves removing delicate clips and ribbon cables, sometimes glue. And to make things even harder, there is all that stuff with locked bootloaders so that you may not even be able to reinstall the system yourself on a new hard drive.
The ridiculous part is the 60/40 recommendation. It is turning statistics over its head. A conclusion that says that 60% of cases are better served by proprietary software can make sense. They are obviously biased but why not. But saying that companies should make 60/40 a goal is like saying that because 60% of cars work better with gasoline and 40% use diesel then all cars should run with a 60/40 gas/diesel mix.
Addiction is not a choice, by definition. The difference between an addiction and a simple habit is that you can't overcome the former without some kind of treatment. Maybe putting yourself in that mess was originally a choice but staying an addict isn't.
It is awfully true for rockets, not so much for planes. After a quick calculation, it appears that only about 1% of the fuel is converted into kinetic and potential energy. Which meant that 99% of it is used to overcome drag. Drag is a function of speed, surface area, air density, and the shape of the plane, not its mass. Rockets are another matter entirely. That's because fuel is used as a reaction mass. As a result, they are constrained by momentum, which is why we need ridiculously large rockets to launch ridiculously small stuff in space. Planes just use surrounding air as a reaction mass.
Weight matters for aerodynamics, and it is a very complex subject that goes well beyond simple energy considerations. A good example is some gliders which have water ballasts to increase their weight. It allows them to glide more efficiently at high speeds at the expense of losing altitude faster at slow speeds. These ballasts can be jettisoned if the flight conditions change, and also before landing in order to limit stress on the airframe.
If this feature can be reproduced with a simple extension, no big deal. Probably very few people used this feature, so it makes sense to remove it. For those the few who did use it, this is what extensions are for.
For instance, I like using backspace to go to the previous page. Apparently is pissed some people off so Google removed it. Found an extension to re-enable it, everybody's happy.
Apple probably doesn't need it as much, whether they have it or not. There is a limited number of different iOS devices, all of them LCDs, and app developers could target them all individually if required.
Contrast to the thousands of Android devices, going from black-and-white screens to hypersaturated AMOLEDs...
Trump is not fundamentally anti-science. He just has a target demographic of people who want to live in the past. "make America great again"... the "again" tells everything.
A few decades ago, there was no apparent global warming problem. People drove gas guzzlers without a second thought. Trump confort his supporters by saying they can still do. But Trump's target demographic also remember fondly remember the moon landings. By supporting NASA and planning missions to Mars, Trump make these people happy. His supporters are mostly within the private sector. Few students. So universities and organizations that impose safety/environmental regulations get cuts.
Many people think Trump is an idiot. He is not. He knows exactly what to say in order to make enough people vote for him.
What projection did you have? I remember having mostly Mercator at school in France. We also had a globe and an we were taught the basics of map projection so it wasn't really a problem.
And the reason is not because of Europe itself, you have to look the other side : between Alaska and Russia. It is a very convenient place to split the map : it avoids cutting important landmasses in half and the wraparound occurs in the middle of the pacific ocean where there are few things of interest. Putting the Americas in the center will split Asia in two, which is a bad thing. We could cut through the Atlantic unless you have good reasons to do so, it is an overall worse solution than cutting through the Pacific..
On the videos I watch annotations usually serve two useful purpose : - Linking to other videos in a series, or to videos that explain some point of detail or prerequisite. Ex: this video explains how LIGO discovered gravitational waves. If you are unfamiliar with gravitational waves, watch this video first. - Fixing mistakes, Ex : trappist-1 is 12 light years away (correction : 12 parsecs).
...is none. Virtual reality will never work. The disconnect between what your eye sees and your inner ear senses will cause motion sickness in the vast majority of people.
This is not a problem if what your are showing matches what your inner ear senses. For example, if all you are showing is a static scene, there is no problem. With proper direction, I thing it will appear what kind of scene are tolerable and what kind shall be avoided. For example, it appears that moving the camera against the user's will is a big no while teleportation is surprisingly well tolerated. Anyways 'the vast majority" of people are not subject to motion sickness. Most people don't suffer motion sickness using current technology, some do, but chances are that they also suffer from it just playing a FPS game on a small screen. It didn't stop FPS games from being popular. A combination of better understanding of motion sickness, technological progress, habituation, and in the extreme cases medication will help taking care of the problem should it become the only problem of VR.
There are also mandatory history lessons. In France, where the anti-Nazi laws are almost as bad as in Germany, the last part of history lessons in public schools, the one that really matters for exams is mostly about WW2, with a good part of it focusing on how bad the Nazis were. This is commonly accompanied by movies and testimonies of veterans and victims of the Nazi regime.
What's the point? Google & Apple and all of the app makers already have all of the data. The government can get to it whenever they'd like. Who would one be securing a phone from, exactly?
If you think Google, Apple and the government are the only ones you need to protect against, you are terribly misguided. The people closest to you are the most likely to use what they find against you in a way that could affect your life. For example, I don't want my boss to know I am looking for another job, I don't want my parents to know I smoke pot, I don't want my wife to know I cheated her, I don't want a casual thief to access my bank account.
I don't know anyone who got into trouble because the government used data gathered from a smartphone. Dirty secrets being discovered by someone close looking at an unlocked smartphone, many times, and often with serious consequences.
Nexus, what Nexus? Google more or less killed the Nexus program with the Pixel line, The last one is the Nexus 6P and we can expect official support to be dropped in 1 or 2 years.
We'll probably have to deal with global warming is some way later. However, there are plenty of other problems that are just as damaging to us that are being addressed right now : nitrates, heavy metals, endangered species, waste disposal, etc... Even China and India seriously start considering it and it is not a stretch to think that a decade or two from now, they will be on par with the west. And it works. Every now and then we hear an encouraging story. It may be the ozone layer reforming, endangered animal populations recovering, atmospheric pollution decreasing in some cities, etc... So while the overall trend may be negative now, if we continue making small improvements the trend will eventually reverse. There will be scars, sure, but at least, we are closing the bleeding wounds.
I would have no problem eating lab grown meat, at least once for the experience. However, I've seen reports referring to it as tasteless. I don't want that.
One thing I don't like about "artificial" food is how boring it is : one brand, one taste, no variation. There are plenty of things going on in living things, all these little things are what give natural products their rich flavor. The more you standardize things, the less you give life a chance to make you something exceptional, and lab grown meat is an extreme case.
If a government wants fingerprints, it just needs to ask. In many countries, fingerprints are required to get an ID card or a passport. They are also often taken as you cross a border. This is not secret data.
Slashdot Mirror
... not just for code.
AFAIK, sideslip approaches aren't taught anymore on all but the lightest aircraft as this is a risky maneuver (reduced lift, loss of control, ...)
The standard way to stay in coordinated flight, which mean that during the approach, the trajectory is aligned with the runway but the nose is not.
At the last moment, the pilot aligns the nose with the runway and momentum keeps the plane in the correct trajectory for the touch down.
On a circular runway, momentum works against you.
airliners are built to be dirt cheap
Dirt cheap? Seriously? How much gold is there in your dirt?
Aviation in general is ridiculously expensive. Large airliners go into the hundreds of millions, which make them about 100 times more expensive than cars, pound for pound. I work in the field and if there is a word that doesn't describe the industry, it's "cheap".
The reason flying is cheaper nowadays is not because planes are built cheaper. That's because they are more efficient and require less maintenance. Plus everything that is not directly related to the plane itself such as : cabin crew, airport fees, service, taxes, yield management, etc...
Cash is obviously very useful in the black market, and I suspect fighting against it is a primary motivation for going cashless.
The interesting question becomes : what will replace cash in the black market? Prepaid cards, cryptocurrencies, foreign cash, precious metals...?
hard drives breaks; needs to buy whole new computer...
It used to be a ridiculous idea, not anymore.
If you look at the new macbooks, the SSD is soldered to the motherboard and that's if you can access the motherboard at all.
And even on laptops where you can actually change the hard drive, more and more often, it involves removing delicate clips and ribbon cables, sometimes glue.
And to make things even harder, there is all that stuff with locked bootloaders so that you may not even be able to reinstall the system yourself on a new hard drive.
The ridiculous part is the 60/40 recommendation.
It is turning statistics over its head.
A conclusion that says that 60% of cases are better served by proprietary software can make sense. They are obviously biased but why not.
But saying that companies should make 60/40 a goal is like saying that because 60% of cars work better with gasoline and 40% use diesel then all cars should run with a 60/40 gas/diesel mix.
Next article : the explosion could be heard from 5 trillionth of a parsec.
Addiction is not a choice, by definition.
The difference between an addiction and a simple habit is that you can't overcome the former without some kind of treatment. Maybe putting yourself in that mess was originally a choice but staying an addict isn't.
It is awfully true for rockets, not so much for planes.
After a quick calculation, it appears that only about 1% of the fuel is converted into kinetic and potential energy. Which meant that 99% of it is used to overcome drag. Drag is a function of speed, surface area, air density, and the shape of the plane, not its mass.
Rockets are another matter entirely. That's because fuel is used as a reaction mass. As a result, they are constrained by momentum, which is why we need ridiculously large rockets to launch ridiculously small stuff in space. Planes just use surrounding air as a reaction mass.
Weight matters for aerodynamics, and it is a very complex subject that goes well beyond simple energy considerations. A good example is some gliders which have water ballasts to increase their weight. It allows them to glide more efficiently at high speeds at the expense of losing altitude faster at slow speeds. These ballasts can be jettisoned if the flight conditions change, and also before landing in order to limit stress on the airframe.
If this feature can be reproduced with a simple extension, no big deal.
Probably very few people used this feature, so it makes sense to remove it. For those the few who did use it, this is what extensions are for.
For instance, I like using backspace to go to the previous page. Apparently is pissed some people off so Google removed it. Found an extension to re-enable it, everybody's happy.
To the figure of speech teacher : when you are finished teaching metaphors, we have a guy who needs lessons on humor.
Apple probably doesn't need it as much, whether they have it or not.
There is a limited number of different iOS devices, all of them LCDs, and app developers could target them all individually if required.
Contrast to the thousands of Android devices, going from black-and-white screens to hypersaturated AMOLEDs...
Trump is not fundamentally anti-science. He just has a target demographic of people who want to live in the past. "make America great again"... the "again" tells everything.
A few decades ago, there was no apparent global warming problem. People drove gas guzzlers without a second thought. Trump confort his supporters by saying they can still do.
But Trump's target demographic also remember fondly remember the moon landings. By supporting NASA and planning missions to Mars, Trump make these people happy.
His supporters are mostly within the private sector. Few students. So universities and organizations that impose safety/environmental regulations get cuts.
Many people think Trump is an idiot. He is not. He knows exactly what to say in order to make enough people vote for him.
What projection did you have?
I remember having mostly Mercator at school in France. We also had a globe and an we were taught the basics of map projection so it wasn't really a problem.
And the reason is not because of Europe itself, you have to look the other side : between Alaska and Russia.
It is a very convenient place to split the map : it avoids cutting important landmasses in half and the wraparound occurs in the middle of the pacific ocean where there are few things of interest.
Putting the Americas in the center will split Asia in two, which is a bad thing. We could cut through the Atlantic unless you have good reasons to do so, it is an overall worse solution than cutting through the Pacific..
https://xkcd.com/977/
On the videos I watch annotations usually serve two useful purpose :
- Linking to other videos in a series, or to videos that explain some point of detail or prerequisite. Ex: this video explains how LIGO discovered gravitational waves. If you are unfamiliar with gravitational waves, watch this video first.
- Fixing mistakes, Ex : trappist-1 is 12 light years away (correction : 12 parsecs).
...is none. Virtual reality will never work. The disconnect between what your eye sees and your inner ear senses will cause motion sickness in the vast majority of people.
This is not a problem if what your are showing matches what your inner ear senses. For example, if all you are showing is a static scene, there is no problem.
With proper direction, I thing it will appear what kind of scene are tolerable and what kind shall be avoided. For example, it appears that moving the camera against the user's will is a big no while teleportation is surprisingly well tolerated.
Anyways 'the vast majority" of people are not subject to motion sickness. Most people don't suffer motion sickness using current technology, some do, but chances are that they also suffer from it just playing a FPS game on a small screen. It didn't stop FPS games from being popular. A combination of better understanding of motion sickness, technological progress, habituation, and in the extreme cases medication will help taking care of the problem should it become the only problem of VR.
This is like comparing a speed to a distance.
It is just a matter of time.
There are also mandatory history lessons.
In France, where the anti-Nazi laws are almost as bad as in Germany, the last part of history lessons in public schools, the one that really matters for exams is mostly about WW2, with a good part of it focusing on how bad the Nazis were.
This is commonly accompanied by movies and testimonies of veterans and victims of the Nazi regime.
What's the point? Google & Apple and all of the app makers already have all of the data. The government can get to it whenever they'd like. Who would one be securing a phone from, exactly?
If you think Google, Apple and the government are the only ones you need to protect against, you are terribly misguided.
The people closest to you are the most likely to use what they find against you in a way that could affect your life.
For example, I don't want my boss to know I am looking for another job, I don't want my parents to know I smoke pot, I don't want my wife to know I cheated her, I don't want a casual thief to access my bank account.
I don't know anyone who got into trouble because the government used data gathered from a smartphone. Dirty secrets being discovered by someone close looking at an unlocked smartphone, many times, and often with serious consequences.
Nexus, what Nexus?
Google more or less killed the Nexus program with the Pixel line, The last one is the Nexus 6P and we can expect official support to be dropped in 1 or 2 years.
We'll probably have to deal with global warming is some way later.
However, there are plenty of other problems that are just as damaging to us that are being addressed right now : nitrates, heavy metals, endangered species, waste disposal, etc... Even China and India seriously start considering it and it is not a stretch to think that a decade or two from now, they will be on par with the west.
And it works. Every now and then we hear an encouraging story. It may be the ozone layer reforming, endangered animal populations recovering, atmospheric pollution decreasing in some cities, etc... So while the overall trend may be negative now, if we continue making small improvements the trend will eventually reverse.
There will be scars, sure, but at least, we are closing the bleeding wounds.
I would have no problem eating lab grown meat, at least once for the experience.
However, I've seen reports referring to it as tasteless. I don't want that.
One thing I don't like about "artificial" food is how boring it is : one brand, one taste, no variation. There are plenty of things going on in living things, all these little things are what give natural products their rich flavor. The more you standardize things, the less you give life a chance to make you something exceptional, and lab grown meat is an extreme case.
If a government wants fingerprints, it just needs to ask.
In many countries, fingerprints are required to get an ID card or a passport. They are also often taken as you cross a border. This is not secret data.