What bugs me about USB power is that the negotation for more than a tenth-amp (half-watt) takes place partly on the data lines.
In theory. In practice, very few devices do any "negotiation". They deliver the power to any device that plugs in. I am not sure if I have ever seen a device that actually uses the official negotiation protocol.
I expect a Twitter storm within hours on this one. Something about taxes and jobs.
These jobs are moving from Luxembourg to Ireland. Trump only cares about jobs moving out of America. An obvious remedy is to avoid creating jobs in America in the first place.
Operate 1000 drives for 100 hours and count the failures and do the math and you get MTBF!.
No! That is NOT how MTBF is calculated. Here is how it is calculated: Engineering designs a HDD. Manufacturing builds it. Then the marketing department decides on what MTBF to print on the box. They want three price points: good, better, best. But it is not cost effective to design and manufacture three different drives, so they actually only design one, and the drives sold at each price point are identical except for the MTBF printed on the box, and the warranty.
Longitudinal data has repeatedly shown that "enterprise" drives have no technical or reliability advantage over consumer HDDs, and the extended warranty is never worth what you pay for it. The MTBF printed on the box has no correlation whatsoever with the actual reliability of the drive.
Then she rolls over on it and kills it, which happens all the time.
No it doesn't. That is total hogwash. In 90% of the world, mothers sleep with their babies. Separate sleeping arrangement are common only in parts of Europe and North America. A baby sleeping with Mom is less than half as likely to die: Research shows that infants who sleep in a crib are twice as likely to suffer a sleep related fatality (including SIDS) than infants who sleep in bed with their parents.
The few "smotherings" that occur are almost always a result of excessive alcohol or drugs. But if you aren't drunk, the kid is safer in bed with you.
i have two kids too and my wife isn't as crazy as yours.
My wife may be neurotic, but she would not buy this device since she is Asian, and in Asian culture babies are never left alone. They sleep with Mom, and if Mom moves from room to room, she takes the baby with her. Also, when you marry an Asian woman, you are basically marrying her whole family. As soon as she is pregnant, her parents move in. So when the kid is born, you have a built in babysitting service. Grandma didn't trust me to change a diaper until the kid was six months old.
The monitor is not for the baby. It is for the mom. Mothers worry incessantly about their babies, and if this monitor helps them sleep without worrying as much, then it is worth the $250. Before I got married and had a kid, I never realized how much women care about their babies. It is like when you were a teenager, and you save and save and finally have enough to buy a brand new XBox. You take it home, and set it up, you worry about it overheating and check the vents every 10 minutes, you dust it twice a day, you worry about every little hum from the fan. Women care about their babies that much.
I'd like to see drive makers focus on reliability.
They do. HDD reliability has been going up for a long time. Some brands and models are much more reliable than others. Google, Backblaze, and others have published longitudinal data about that. The MTBF printed on the packaging means absolutely nothing. If you care about reliability, then check reliability data, and stick to the "one-back" rule and don't buy bleeding edge hardware.
Why not build in two different drive heads that can work in an active/active configuration
Because customers that need high speed non-consecutive I/O have mostly moved to SSD.
The only reason to use HDDs is because they are cheap. So anything that adds to the cost, just pushes more customers to SSDs.
Serious question.... are any practical implications to this at all?
Of what practical use is a newborn baby?
80 years seems like a long time searching for something
80 years elapsed between the prediction and the result. That doesn't mean that some 30 year old researcher spent the last 80 years devoting his life to the quest, only to emerge from his lab as a triumphant 110 year old geezer, who shouts "eureka" and then falls down dead. For much of the 80 years, nobody was actively working on it. The diamond anvil cell was only invented in 1959.
Unlikely. But metallic hydrogen may have some very useful properties. It has been theorized to be a room temp superconductor. According to TFA, they haven't been able to test that yet.
Another factoid about SMH: It is believed to make up much of the mass of Jupiter, with Jovian SMH possibly making up the mass of a few dozen earths.
Anyone, and yes that is ANYONE, can now claim the same right?
Most people already claim the same right. Guilt induced self-sacrifice is clearly not the solution to the world's problems. Yet you criticize Elon for pursuing viable alternatives.
Let's look at the scorecard: Elon operates a company that has installed millions of solar panels. Elon has improved electric car technology. Elon has pioneered driver assistance tech that will lead to self-driving cars. Elon is building the world's biggest battery factory, to push down the price of portable power. Now what have YOU done? You fly economy and recycle your trash. And you think you are the one making a difference?
Because if you don't vote 10/10 then the retaliatory customer rating will be 0/10
I don't know how Uber works (I use Lyft) but the way Airbnb works is neither party can see the other's rating until both have posted. So using the rating system to retaliate doesn't work.
About 3.5 million Americans are schizophrenic, about 1% of the population. It is a major root cause of homelessness, addiction, suicide, and many other social problems. Yet we consider it funny to ridicule them in ways that would not be acceptable for other disabilities. Why is that?
In the Western World there is a moral imperative to denounce cigarets, alcohol, drugs and anything that smacks of fun.
Go talk to some smokers. Very few consider cigarettes to be "fun". 90% of smokers started before they were 18. The tobacco industry depends on getting children addicted before they have the maturity to make a rational decision. They deserve to be denounced, and we have a moral imperative to do so.
I have a cousin with schizophrenia. He was institutionalized for a few years. I visited him regularly and ended up volunteering to help out at the psych ward. Over time, I met more than a hundred patients. I would say 80-90% of them smoked or used nicotine patches (which were free while cigarettes were not). Compare that to about 11% smokers for the state (California) or 15% for the whole country. This was all back before vaping, which should be a big help for these people, since they can get their nicotine fix without all the crap in tobacco smoke.
Elon Musk claims global warming is a problem, yet contributes more pollution by himself...
This is a silly argument. His personal pollution is an infinitesimal portion of the total. It is far better for him to optimize his time to focus on solving global problems rather than pointlessly trying to set a personal example.
Sanders has a net worth of just over half a million dollars.
Wow. Just by regular 401k contributions and paying my mortgage on time, I have managed to accumulate way more than that. If he can't even manage his own finances, how can he manage a 17 trillion dollar economy?
I was not a Sanders supporter because I think his brand of zero-sum cargo cult economics would be a disaster. But nonetheless it is admirable that he applies the same no-growth philosophy to his own finances.
Thank you, I was wondering what that abbreviation was as well. Now I'm wondering which economist defined "basis point" to mean "a percent of a percent".
"Basis point" is a finance term used by traders, not an economics term. Economists rarely use the term. Traders say "basis points" because they don't really understand percentages or fractions or other advanced math.
He is trying to build a better buggy whip. The solution to traffic congestion is not more infrastructure capacity, but using the capacity we have more efficiently. Automatic braking, lane control and (eventually) SDCs, should be able to increase road capacity by a factor of 2 to 5. As the CEO of Tesla, he should focus on that. By the time the tunnel is built, it will no longer be needed.
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What bugs me about USB power is that the negotation for more than a tenth-amp (half-watt) takes place partly on the data lines.
In theory. In practice, very few devices do any "negotiation". They deliver the power to any device that plugs in. I am not sure if I have ever seen a device that actually uses the official negotiation protocol.
Stop being cheap and buy known certified products from official channels in the first place, instead of cheaping out with items from Alibaba.
Exactly. I buy all my USB devices from Amazon, so I know I am safe.
I expect a Twitter storm within hours on this one. Something about taxes and jobs.
These jobs are moving from Luxembourg to Ireland. Trump only cares about jobs moving out of America. An obvious remedy is to avoid creating jobs in America in the first place.
Operate 1000 drives for 100 hours and count the failures and do the math and you get MTBF!.
No! That is NOT how MTBF is calculated. Here is how it is calculated: Engineering designs a HDD. Manufacturing builds it. Then the marketing department decides on what MTBF to print on the box. They want three price points: good, better, best. But it is not cost effective to design and manufacture three different drives, so they actually only design one, and the drives sold at each price point are identical except for the MTBF printed on the box, and the warranty.
Longitudinal data has repeatedly shown that "enterprise" drives have no technical or reliability advantage over consumer HDDs, and the extended warranty is never worth what you pay for it. The MTBF printed on the box has no correlation whatsoever with the actual reliability of the drive.
Then she rolls over on it and kills it, which happens all the time.
No it doesn't. That is total hogwash. In 90% of the world, mothers sleep with their babies. Separate sleeping arrangement are common only in parts of Europe and North America. A baby sleeping with Mom is less than half as likely to die: Research shows that infants who sleep in a crib are twice as likely to suffer a sleep related fatality (including SIDS) than infants who sleep in bed with their parents.
The few "smotherings" that occur are almost always a result of excessive alcohol or drugs. But if you aren't drunk, the kid is safer in bed with you.
i have two kids too and my wife isn't as crazy as yours.
My wife may be neurotic, but she would not buy this device since she is Asian, and in Asian culture babies are never left alone. They sleep with Mom, and if Mom moves from room to room, she takes the baby with her. Also, when you marry an Asian woman, you are basically marrying her whole family. As soon as she is pregnant, her parents move in. So when the kid is born, you have a built in babysitting service. Grandma didn't trust me to change a diaper until the kid was six months old.
The monitor is not for the baby. It is for the mom. Mothers worry incessantly about their babies, and if this monitor helps them sleep without worrying as much, then it is worth the $250. Before I got married and had a kid, I never realized how much women care about their babies. It is like when you were a teenager, and you save and save and finally have enough to buy a brand new XBox. You take it home, and set it up, you worry about it overheating and check the vents every 10 minutes, you dust it twice a day, you worry about every little hum from the fan. Women care about their babies that much.
I'd like to see drive makers focus on reliability.
They do. HDD reliability has been going up for a long time. Some brands and models are much more reliable than others. Google, Backblaze, and others have published longitudinal data about that. The MTBF printed on the packaging means absolutely nothing. If you care about reliability, then check reliability data, and stick to the "one-back" rule and don't buy bleeding edge hardware.
Why not build in two different drive heads that can work in an active/active configuration
Because customers that need high speed non-consecutive I/O have mostly moved to SSD.
The only reason to use HDDs is because they are cheap. So anything that adds to the cost, just pushes more customers to SSDs.
we'll probably never produce the necessary conditions on earth where Hydrogen will be a solid and we can see if it will be a metal.
Hydrogen was first solidified in 1899. It wasn't a metal.
Serious question.... are any practical implications to this at all?
Of what practical use is a newborn baby?
80 years seems like a long time searching for something
80 years elapsed between the prediction and the result. That doesn't mean that some 30 year old researcher spent the last 80 years devoting his life to the quest, only to emerge from his lab as a triumphant 110 year old geezer, who shouts "eureka" and then falls down dead. For much of the 80 years, nobody was actively working on it. The diamond anvil cell was only invented in 1959.
does not mean that the stuff requires the same pressure to stay in the metallic state.
It's Hydrogen. Yes it does.
You don't know that. There are many examples of substances that retain their properties when pressure is released. For instance, there is Ice-9.
Use it to power our cellphones?
Unlikely. But metallic hydrogen may have some very useful properties. It has been theorized to be a room temp superconductor. According to TFA, they haven't been able to test that yet.
Another factoid about SMH: It is believed to make up much of the mass of Jupiter, with Jovian SMH possibly making up the mass of a few dozen earths.
Anyone, and yes that is ANYONE, can now claim the same right?
Most people already claim the same right. Guilt induced self-sacrifice is clearly not the solution to the world's problems. Yet you criticize Elon for pursuing viable alternatives.
Let's look at the scorecard:
Elon operates a company that has installed millions of solar panels.
Elon has improved electric car technology.
Elon has pioneered driver assistance tech that will lead to self-driving cars.
Elon is building the world's biggest battery factory, to push down the price of portable power.
Now what have YOU done?
You fly economy and recycle your trash.
And you think you are the one making a difference?
Because if you don't vote 10/10 then the retaliatory customer rating will be 0/10
I don't know how Uber works (I use Lyft) but the way Airbnb works is neither party can see the other's rating until both have posted. So using the rating system to retaliate doesn't work.
I am as honest as they let me be.
You are a horrible person. Do you realize that by rating a good, but not fantastic, interaction as only 4/5, you are jeopardizing someone's career?
About 3.5 million Americans are schizophrenic, about 1% of the population. It is a major root cause of homelessness, addiction, suicide, and many other social problems. Yet we consider it funny to ridicule them in ways that would not be acceptable for other disabilities. Why is that?
In the Western World there is a moral imperative to denounce cigarets, alcohol, drugs and anything that smacks of fun.
Go talk to some smokers. Very few consider cigarettes to be "fun". 90% of smokers started before they were 18. The tobacco industry depends on getting children addicted before they have the maturity to make a rational decision. They deserve to be denounced, and we have a moral imperative to do so.
I have a cousin with schizophrenia. He was institutionalized for a few years. I visited him regularly and ended up volunteering to help out at the psych ward. Over time, I met more than a hundred patients. I would say 80-90% of them smoked or used nicotine patches (which were free while cigarettes were not). Compare that to about 11% smokers for the state (California) or 15% for the whole country. This was all back before vaping, which should be a big help for these people, since they can get their nicotine fix without all the crap in tobacco smoke.
Elon Musk claims global warming is a problem, yet contributes more pollution by himself ...
This is a silly argument. His personal pollution is an infinitesimal portion of the total. It is far better for him to optimize his time to focus on solving global problems rather than pointlessly trying to set a personal example.
No, it's eliminating the unnecessary traffic. How many of those in traffic are going to jobs that they could telecommute to just fine?
Most of the jobs that can be done just fine with telecommuting have already been outsourced to Mumbai, or soon will be.
Sanders has a net worth of just over half a million dollars.
Wow. Just by regular 401k contributions and paying my mortgage on time, I have managed to accumulate way more than that. If he can't even manage his own finances, how can he manage a 17 trillion dollar economy?
I was not a Sanders supporter because I think his brand of zero-sum cargo cult economics would be a disaster. But nonetheless it is admirable that he applies the same no-growth philosophy to his own finances.
It's better to run trains in them, for that reason.
When is there going to be a train that runs from my house to the grocery store?
after decades (30+) of Mac use.
I call BS. 30 decades is three centuries, and Macs have only been around since 1984.
Thank you, I was wondering what that abbreviation was as well. Now I'm wondering which economist defined "basis point" to mean "a percent of a percent".
"Basis point" is a finance term used by traders, not an economics term. Economists rarely use the term. Traders say "basis points" because they don't really understand percentages or fractions or other advanced math.
He is trying to build a better buggy whip. The solution to traffic congestion is not more infrastructure capacity, but using the capacity we have more efficiently. Automatic braking, lane control and (eventually) SDCs, should be able to increase road capacity by a factor of 2 to 5. As the CEO of Tesla, he should focus on that. By the time the tunnel is built, it will no longer be needed.