I tried x10 like 20 years ago when Fry's had a free giveaway, but couldn't see the point beyond novelty. And I built my own for some industrial processes that I was playing with a few years ago (hatching chickens), but what mostly for fun.
Are there any detailed reasons why it would cost hundreds of billions of dollars? India sent an orbiter to Mars for $75million. What missing pieces have to be developed?
I didn't work for NASA, but I have worked for NASA contractors. On both the shuttle and a few planetary missions. They're really the ones who design and build almost everything, NASA just pays the bills.
It was very frustrating working on projects because contracts are set up to pay the most to the contractors and not push the envelope of technology in any way. Why should they when they can keep making money the old fashion way, things break when you push what can be done. Everything is based on fifty year old proven technology. Well super. The world has moved on since Apollo and NASA is not a technology leader anymore. We have to wait until all the old people die before anything new gets done. It's good to see companies getting involved with this because they're not beholden to people who are stuck with failure is not an option mentality.
One of my favorite stories that illustrates this is during one of the early shuttle missions, their TV camera broke. It was a custom designed thing and cost millions of dollars, so they got the OK to send up a cheap thousand dollar consumer video camera instead of going without. It turned out that the consumer camera outperformed the NASA camera. Sure, they weren't basing a billion dollar mission on it and certifying it os that you would would cost a lot of money, but I'm sure there's a middle ground
Exactly. I collect (and use) old pre WWII machine tools that are imperial and don't see a problem. There was a thermodynamics homework problem that asked a question in imperial units to test that people really understood the concepts of a problem and weren't simply plugging numbers in, I had to look up what a slug was, but no big deal.
That's not a programming problem. A programming problem is when you walk up to a cash register and see a black scree with a blinking cursor and a stack dump. You are talking about a requirements specification problem. Which shouldn't be left up to programmers.
Nobody in science or engineering uses imperial units, so what's your problem? Crap, we don't even use units anymore, all of that is handled by software.
We here in America don't use pencils and paper by hand to get to Mars. Maybe that's why we've had the most success so far. Maybe you guys should try computers.
I was watching a youtube video from Australia yesterday and the guy was describing almost everything in inches and MPH. Same goes for a video from Scotland I saw yesterday (car and engine shows).
Physics and engineering is in metric and has been for a long time (from someone who works in both fields). I've never seen Celsius, or Fahrenheit for that matter. We use Kelvin. Celsius is a dumb scale IMO.
The smaller the transistor, the smaller the metal plate (the gate), so it charges faster, creating the channel faster allowing for faster switching times.
It's really capacitor charge time. In CMOS technology, you basically have a metallic plate (the gate) sitting on some semi conductor (separated by an insulator).
As electrons flow into the 'plate', they accumulate. This creates an electric field which pushes electrons in the semiconductor away creating a channel of 'holes'. It's through this channel that electrons can flow (drain to source). Note that the electrons moving through the CMOS gate are typically sent to another transistor. And as soon as that plate fills up with electrons, current stops flowing through the device. And since power = current x voltage (IxV), you only dissipate power while the device is switching and this is why there is more current drain (and heating) the faster that you switch. Leakage current blah blah disclaimers.
Slashdot Mirror
I tried x10 like 20 years ago when Fry's had a free giveaway, but couldn't see the point beyond novelty. And I built my own for some industrial processes that I was playing with a few years ago (hatching chickens), but what mostly for fun.
Does the device load its own software?
And this is why I don't have any IoT devices. X-10 still works for me.
Is your X-10 device connected to your internet connected computer?
It is God
Nobody here is nerdy enough to get the reference.
Are there any detailed reasons why it would cost hundreds of billions of dollars? India sent an orbiter to Mars for $75million. What missing pieces have to be developed?
I didn't work for NASA, but I have worked for NASA contractors. On both the shuttle and a few planetary missions. They're really the ones who design and build almost everything, NASA just pays the bills.
It was very frustrating working on projects because contracts are set up to pay the most to the contractors and not push the envelope of technology in any way. Why should they when they can keep making money the old fashion way, things break when you push what can be done. Everything is based on fifty year old proven technology. Well super. The world has moved on since Apollo and NASA is not a technology leader anymore. We have to wait until all the old people die before anything new gets done. It's good to see companies getting involved with this because they're not beholden to people who are stuck with failure is not an option mentality.
One of my favorite stories that illustrates this is during one of the early shuttle missions, their TV camera broke. It was a custom designed thing and cost millions of dollars, so they got the OK to send up a cheap thousand dollar consumer video camera instead of going without. It turned out that the consumer camera outperformed the NASA camera. Sure, they weren't basing a billion dollar mission on it and certifying it os that you would would cost a lot of money, but I'm sure there's a middle ground
You had have braces though and it only picked up AM.
Exactly. I collect (and use) old pre WWII machine tools that are imperial and don't see a problem. There was a thermodynamics homework problem that asked a question in imperial units to test that people really understood the concepts of a problem and weren't simply plugging numbers in, I had to look up what a slug was, but no big deal.
/They're not their. Brainfart.
purchases go now
The embedded processor market has always been about 2 orders of magnitude larger than the consumer computer market.
Please not 8086 architecture.
It really is transistors, all the way down.
And their all analog too :)
Until you get to the quantum mechanics level, but that's a whole different set of modelling.
That's not a programming problem. A programming problem is when you walk up to a cash register and see a black scree with a blinking cursor and a stack dump. You are talking about a requirements specification problem. Which shouldn't be left up to programmers.
The Earth radiates 60mW/sq meter from the core.
Thank you. Excellent idea, but won't that kill the new slashdot business model?
Nobody in science or engineering uses imperial units, so what's your problem? Crap, we don't even use units anymore, all of that is handled by software.
We here in America don't use pencils and paper by hand to get to Mars. Maybe that's why we've had the most success so far. Maybe you guys should try computers.
I was watching a youtube video from Australia yesterday and the guy was describing almost everything in inches and MPH. Same goes for a video from Scotland I saw yesterday (car and engine shows).
Are you talking about salt water, pond water or distilled water? Because they all have different temperatures at freezing.
Physics and engineering is in metric and has been for a long time (from someone who works in both fields). I've never seen Celsius, or Fahrenheit for that matter. We use Kelvin. Celsius is a dumb scale IMO.
everyone knows the earth is hollow anyway
And flat. The grand unified conspiracy theory of the Earth is to reconcile this, similar to gravity with quantum.
The smaller the transistor, the smaller the metal plate (the gate), so it charges faster, creating the channel faster allowing for faster switching times.
It's really capacitor charge time. In CMOS technology, you basically have a metallic plate (the gate) sitting on some semi conductor (separated by an insulator).
As electrons flow into the 'plate', they accumulate. This creates an electric field which pushes electrons in the semiconductor away creating a channel of 'holes'. It's through this channel that electrons can flow (drain to source). Note that the electrons moving through the CMOS gate are typically sent to another transistor. And as soon as that plate fills up with electrons, current stops flowing through the device. And since power = current x voltage (IxV), you only dissipate power while the device is switching and this is why there is more current drain (and heating) the faster that you switch. Leakage current blah blah disclaimers.
CMOS Transistor
Stick with small, special purpose, libraries.
Doesn't only the specific call get linked in and not the whole library? If I call acosh(), I don't need all 120 dead code math functions.