Comment Re: But what about the grid? (Score 1) 115
Incorrect, Norway has pumped hydro. Google it !
There is a 700MW interconnected between The Netherlands and Norway and 1400MW interconnect between the UK and Norway.
Find out where it is used for!
Comment Re:180 degrees (Score 5, Informative) 40
RTFA: At the moment about 10 to 15 percent.
Comment Re:Absolute and complete insanity (Score 2) 132
Do you have real data on the carbon footprint of a bitcoin transaction vs a traditional bank transaction? Because I'm betting you don't.
About 500.000 times worse for a bitcoin transaction than a traditional bank transaction according to https://www.forbes.com/advisor...
Comment Re:Suspensionless, slow, and expensive? (Score 1) 24
This is kind of an Apple-ish product; they're selling design, not specs.
I totally agree, an overpriced gadget which you'll probably not see outside Amsterdam.
Somebody may like the design (I think it is ugly as hell), but no suspension (Holland is a flat country but littered with speed-bumps) and a front
weel hub: you'll want a mid-drive which will give better torque and steering.
For day-to-day use (I average some 3500 km/year) there are lower priced and much better alternatives.
Comment Re:100 megawatt energy storage (Score 1) 64
Sorry, gallons per mile... (Where is the edit button)
Comment 100 megawatt energy storage (Score 1) 64
...where it aims to connect a 100 megawatt energy storage system to the grid....
Since when is MW a unit of energy ?
Seems a meaningless PR story without any merit.
Like saying my car does 340 miles. (top speed ?, range per mile ?)
It happens to be the range before I have to refuel.
Comment Re:Sensational Summary (Score 1) 204
They managed to avoid mentioning the types of battery being used although one article says they are installed in 38-ton storage containers
How many iPhones are that ?
Comment Re:Is anyone surprised? (Score 1) 279
There are 365 days in the year, and most places only have 100-150 years of data. The mathematical chance of at least one record high or low each year should be quite high.
But if the count of a record high is larger than the count of a record low than that should give some indication.
Comment Re:FUCK (Score 1) 150
Citation needed. I wasn't able to locate any OSHA dirty dozen, it looks like it's something put out by COSH, who is not OSHA. It doesn't look like Amazon is on their 2020 list but did make "honorable mention":
Try 2019: https://coshnetwork.org/2019-D...
Comment Re:"The air is getting hotter". Odd, it feels cold (Score 1) 120
Wanna take a bet ?
How many cold records were broken, how many hot records were broken in the same period ?
There is a difference between weather and climate!
Comment Re:What could go wrong (Score 1) 231
Millions of idiots could refuse to get vaccinated thus prolonging our COVID nightmare.
As long as my friends/family get theirs, I'm fine with the millions of idiots taking the Darwin approach.
Unless you get some other medical condition requiring hospitalisation and those idiots are taking up all the ICU beds.
NASA is Trying To Save Voyager 2 After a Power Glitch Shut Down Its Instruments (technologyreview.com) 39
UPDATE (2/8/2020): NASA technicians were able to reach Voyager 2, a whopping 11.5 billion miles from earth, and get it fully back online and collecting scientific data again.
Below is Slashdot's original story from January 31st...
Last Saturday, Voyager 2's software shut down all five of the scientific instruments onboard because the spacecraft was consuming way too much power. Engineers at NASA don't know what triggered this energy spike and are currently trying to get the interstellar probe, which was launched in 1977, back to normal operations. Its primary mission was supposed to last five years. In 2018, it officially left the solar system. In order to keep the spacecraft running properly 42 years later, NASA has had to carefully manage power consumption for the instruments and the probe's heaters. From a report: About 11.5 billion miles away, Voyager 2 was supposed to make a scheduled 360-degree rotation that would help calibrate its magnetometer (used to measure magnetic fields). The spacecraft delayed this move for still unknown reasons, leaving two other internal systems running at high power. The onboard software decided to offset this power deficit by shutting down the five scientific instruments still working. NASA engineers shut down one of the power-hungry systems and turned the science instruments back on. But the spacecraft is still not cleared for normal operations and is not collecting any new data for now. [...] It takes 17 hours for data from Earth to get to Voyager 2, and vice versa. This lag means it will take several days to solve the spacecraft's woes. As it is, the radioisotope thermoelectric generator, which powers the spacecraft, is only expected to last another five years before the plutonium-238 can no longer provide enough heat to power the probe's instruments, so Voyager 2 is on its last hurrah anyway.
Below is Slashdot's original story from January 31st...
Last Saturday, Voyager 2's software shut down all five of the scientific instruments onboard because the spacecraft was consuming way too much power. Engineers at NASA don't know what triggered this energy spike and are currently trying to get the interstellar probe, which was launched in 1977, back to normal operations. Its primary mission was supposed to last five years. In 2018, it officially left the solar system. In order to keep the spacecraft running properly 42 years later, NASA has had to carefully manage power consumption for the instruments and the probe's heaters. From a report: About 11.5 billion miles away, Voyager 2 was supposed to make a scheduled 360-degree rotation that would help calibrate its magnetometer (used to measure magnetic fields). The spacecraft delayed this move for still unknown reasons, leaving two other internal systems running at high power. The onboard software decided to offset this power deficit by shutting down the five scientific instruments still working. NASA engineers shut down one of the power-hungry systems and turned the science instruments back on. But the spacecraft is still not cleared for normal operations and is not collecting any new data for now. [...] It takes 17 hours for data from Earth to get to Voyager 2, and vice versa. This lag means it will take several days to solve the spacecraft's woes. As it is, the radioisotope thermoelectric generator, which powers the spacecraft, is only expected to last another five years before the plutonium-238 can no longer provide enough heat to power the probe's instruments, so Voyager 2 is on its last hurrah anyway.
Comment Re:Really? (Score 1) 77
You know that you can store numbers in a regular phone ?
Comment Re:How to do this (Score 1) 148
Well, I did.
The line that makes the most sense in the article:
"By now, many BS detectors will be ringing at full volume. I get it. This sounds like magic beans."
I see lot's of random claims (saving lives, detecting hacked systems and whatever).
What they do it high speed sampling of the current and voltage and compute 26 parameters
(why 26, something I must have missed when I got a degree in electrical engineering).
OK, you can characterize whats happening and try to correct some stuff.
40 years ago we kept the grid clean by simply putting a synchonous motor and generator on a single shaft
en could play around with thyristors, igbts and what not without generating a mess on the grid. The utility company
was not so happy with the students experiments and this was required to prevent us from messing up the grid.
Comment COSMAC Super Elf (Score 1) 857
A single board which you had to solder yourself. , An 1802 processor, 256 bytes of RAM, four 7-segment displays and a HEX keypad. The instruction set was highly symmetric so I was my own assembler. It was quickly expanded with a second board containing 4K memory and a video output which I could hook up an old BW TV with vacuum tubes. On this TV is was easy to adjust for the line freqency which was different in Europe and a modern TB didn't sync.
After a few years it was followed by an Acorn Atom (overclocked to 2 MHz).
Almost all hardware which came after the 1802 has gone, (numerous PC's, LSI 11/23 etc) but I still have the 1802 board and its manuals lying around, it probably still works after 40 years.
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