After the one where humans first harnessed water power, the Dam Age, and when we started wearing clothes, the Garb Age.
What a useless article! I found some actual information here: https://www.techspot.com/news/97995-data-center-uses-waste-h... The "data center" produces about 28 kW of heat and the swimming pool has cut its gas bill by…
It's obviously not 180 kWp/m. If it was I could put 1 meter of panels on my roof and power my house and 200 of my neighbors. I didn't try to calculate the amount of energy it produces in a year, just the length of…
They're getting 180 watts per meter, so it would take 50 km of panels to power one high speed train. And that's when the sun is shining. Double this at least if you want to store the energy and run trains in the evening.
In the US Navy at least, you don't "fire" a torpedo, you "shoot" it. The lore is that "fire" has a very specific, very urgent meaning on a warship and you don't use that word unless there actually is a fire.
I'm not a handgun expert at all but I've caught a few of these, like the guy who racked the slide on his revolver. The author who really impressed me, although not with his handgun knowledge, was Tom Clancy. I was in…
I was there when we turned on the Internet in 1981. At the time I would have defined the Internet as the set of all endpoints reachable using IPv4. By that definition, none of us today are even on the Internet. You…
I don't understand the kernel problem. Why did he feel he had to rebuild the kernel weekly? When the amdgpu stopped working why couldn't he just go back to the last working kernel?
Square pixels were certainly not an innovation of the Macintosh. The earliest raster scan workstation I'm aware of is the Alto, released in 1973. It and the ones that came after it like the Star and Dorado all had…
California imports a third of its electricity, and that's expensive. It gets almost another third from natural gas. They've been changing rapidly from fossil fuels and nuclear to renewables and that's pretty capital…
Yes. This was more than 50 years ago. The store owner let me examine the device. It was wired into his alarm system. It even had the frequency listed on the label.
Children too. My own hearing extended to about 23 kHz until I was in my early 20s, and I don't think I was exceptional. There was a jewelry store in my town that I couldn't go in to because the "ultrasonic" motion…
Seattle is crazy. I used to live on 1st Ave N, which is the same physical street as 1st Ave and 1st Ave S, but don't confuse them because they all have their own numbers and some of them overlap. It is however…
That's why I wish I'd paid closer attention. If she played her own compositions, I wasn't aware of it. My aunt and uncle were both serious amateur musicians and often had people over to play music. It's more likely they…
I knew her in Ann Arbor. By then she had stopped performing but I heard her play a couple of times at my uncle's house. I now wish I'd paid closer attention, I was just a stupid teenager at the time.
Here's a photo of the tape recorder: https://science.nasa.gov/image-detail/voyager-digital-record...
It's a specific technique where you deliberately modulate the signal so as to interfere with the color subcarrier. This can be used to produce colors that are otherwise not available.…
Engineering notebooks were required at my first job in the 1970s, for patent reasons. The notebook pages are numbered and it has a real sewn binding, making it harder to remove or insert a page without being noticed. We…
Standard Ebooks does a nice job of typesetting and proofreading many of the Project Gutenberg books, including this one. https://standardebooks.org/ebooks/jack-black/you-cant-win
I bought a Tektronix 4014 in 1991 and had it until 2016. During that time it never required any repairs or calibration. Built like a tank. The guy I sold it to had to replace capacitors in the power supply, and still…
I live in the tropics and there is plenty of sunshine here. So my skin doctor told me to avoid the sun at all costs, always wear suncreen and a hat, don't go out in the daytime. A few years of that and now I have a…
Not only that, it's all jpeg images. Of email messages. I wonder if they printed these out from Lotus Notes on a dot-matrix printer then screenshotted them on their camera phones. There are various efforts (outside the…
An entire 1000 foot reel of 35 mm film only has about 15,000 frames on it, so one part in 30,000 would be good enough. When I worked in TV none of the sound equipment had ovens for their crystals. We did have a sync…
https://news.ycombinator.com/item?id=45719250
You might consider joining the Citizen Weather Observer Program. It's a great way to share your data with other station owners. http://www.wxqa.com/ I had a station for a few years. The receiver had a usb interface so…
After the one where humans first harnessed water power, the Dam Age, and when we started wearing clothes, the Garb Age.
What a useless article! I found some actual information here: https://www.techspot.com/news/97995-data-center-uses-waste-h... The "data center" produces about 28 kW of heat and the swimming pool has cut its gas bill by…
It's obviously not 180 kWp/m. If it was I could put 1 meter of panels on my roof and power my house and 200 of my neighbors. I didn't try to calculate the amount of energy it produces in a year, just the length of…
They're getting 180 watts per meter, so it would take 50 km of panels to power one high speed train. And that's when the sun is shining. Double this at least if you want to store the energy and run trains in the evening.
In the US Navy at least, you don't "fire" a torpedo, you "shoot" it. The lore is that "fire" has a very specific, very urgent meaning on a warship and you don't use that word unless there actually is a fire.
I'm not a handgun expert at all but I've caught a few of these, like the guy who racked the slide on his revolver. The author who really impressed me, although not with his handgun knowledge, was Tom Clancy. I was in…
I was there when we turned on the Internet in 1981. At the time I would have defined the Internet as the set of all endpoints reachable using IPv4. By that definition, none of us today are even on the Internet. You…
I don't understand the kernel problem. Why did he feel he had to rebuild the kernel weekly? When the amdgpu stopped working why couldn't he just go back to the last working kernel?
Square pixels were certainly not an innovation of the Macintosh. The earliest raster scan workstation I'm aware of is the Alto, released in 1973. It and the ones that came after it like the Star and Dorado all had…
California imports a third of its electricity, and that's expensive. It gets almost another third from natural gas. They've been changing rapidly from fossil fuels and nuclear to renewables and that's pretty capital…
Yes. This was more than 50 years ago. The store owner let me examine the device. It was wired into his alarm system. It even had the frequency listed on the label.
Children too. My own hearing extended to about 23 kHz until I was in my early 20s, and I don't think I was exceptional. There was a jewelry store in my town that I couldn't go in to because the "ultrasonic" motion…
Seattle is crazy. I used to live on 1st Ave N, which is the same physical street as 1st Ave and 1st Ave S, but don't confuse them because they all have their own numbers and some of them overlap. It is however…
That's why I wish I'd paid closer attention. If she played her own compositions, I wasn't aware of it. My aunt and uncle were both serious amateur musicians and often had people over to play music. It's more likely they…
I knew her in Ann Arbor. By then she had stopped performing but I heard her play a couple of times at my uncle's house. I now wish I'd paid closer attention, I was just a stupid teenager at the time.
Here's a photo of the tape recorder: https://science.nasa.gov/image-detail/voyager-digital-record...
It's a specific technique where you deliberately modulate the signal so as to interfere with the color subcarrier. This can be used to produce colors that are otherwise not available.…
Engineering notebooks were required at my first job in the 1970s, for patent reasons. The notebook pages are numbered and it has a real sewn binding, making it harder to remove or insert a page without being noticed. We…
Standard Ebooks does a nice job of typesetting and proofreading many of the Project Gutenberg books, including this one. https://standardebooks.org/ebooks/jack-black/you-cant-win
I bought a Tektronix 4014 in 1991 and had it until 2016. During that time it never required any repairs or calibration. Built like a tank. The guy I sold it to had to replace capacitors in the power supply, and still…
I live in the tropics and there is plenty of sunshine here. So my skin doctor told me to avoid the sun at all costs, always wear suncreen and a hat, don't go out in the daytime. A few years of that and now I have a…
Not only that, it's all jpeg images. Of email messages. I wonder if they printed these out from Lotus Notes on a dot-matrix printer then screenshotted them on their camera phones. There are various efforts (outside the…
An entire 1000 foot reel of 35 mm film only has about 15,000 frames on it, so one part in 30,000 would be good enough. When I worked in TV none of the sound equipment had ovens for their crystals. We did have a sync…
https://news.ycombinator.com/item?id=45719250
You might consider joining the Citizen Weather Observer Program. It's a great way to share your data with other station owners. http://www.wxqa.com/ I had a station for a few years. The receiver had a usb interface so…