Posts by imanidiot

Because beancounters have calculated that the cost to the company for BYOD is "free" (Because they ignore all the added costs needed to get anything even remotely secure on whatever random device people will bring in) and 25 to 35 currency units per employee is a hefty chunk of capital gone in an instant.

You're certainly not the first to get caught by that. First of energy companies are notorious for bureaucracy and on top of that it's even worse for the big ones. Then there's the incentive of all that extra cash they get to keep from people who get tired of "fighting windmills" and neven actually get a refund. It seems your experience with "Gluon" is par for the course of any move. Especially when back in those days you couldn't just up and go to a different energy provider.

Re: It's the Thin End of the Wedge

GDPR? Not in the great land of the eternally enslaved and the home of the unnecessarily scared.

Re: I am not fan of corporate cultures...

No, no, "basic" EUV isn't insanity optics. High-NA EUV systems on the other hand... definitely insanity (and definitely the end of the road for Moore's "law").

Re: What could possibly go wrong?

Musk talks a big game about that particular topic, but has anything effectively actually changed? Twitter has always had a seedy dark side and indeed pre-Musk twitter didn't SEEM to consider it a priority (but likely just didn't want to actually talk about it)

Re: Do Not Change The Settings

The VAST majority of smoke detectors sold nowadays are optical devices, not ionisation. They're still available if you search hard enough, but it's getting harder and harder. Optical devices are generally more sensitive to smoldering fires.

Re: so what happened ?

No, just the amount of people going to university for tech/beta fields isn't enough to satiate the need for the majority of tech jobs (including chemical, electrical, mechanical engineering). That's before any of them decide to have a job in the industry or not. Just west of the border (Netherlands) there's still a lot of demand for IT jobs at very decent pay too, but not enough locals to fulfill those functions.

Re: so what happened ?

It still has very good universities producing skilled engineers. But there's need for many tens of thousands of engineers in the various industries in Europe and the current crops from all universities put together probably sums up to not even ten thousand engineers. Most universities produce maybe 100 engineers a year for things like mechanical engineering or IT related topics. There simply aren't enough people over here interested in the field.

Re: air CON

What good is a "break glass in case of emergency" key to windows that don't open more than a foot (and apparently quite far off the ground)?

Re: air CON

Word of warning if you're going to buy a CO2 sensor, make sure it actually lists containing an NDIR or other direct CO2 measurement sensor. There's a lot of cheap sensor out there that correlate a few cheaper sensor measurements (VOCs and Hydrogen, using a MOS sensor) into a makeshift "it's approximately this" CO2 level, but they're not very accurate at the best of times and get worst towards the higher ranges (usually referred to as estimated CO2 (eCO2) or CO2 equivalent (CO2eq).)

Re: air CON

large amounts of people in any space that's not getting active air replenishment is going to raise CO2 content to uncomfortable levels very very fast. And I think the poster above got his percentages off by a factor of 10. Acceptable levels are anything below 600 ppm, which is about 0.06%. Discomfort and drowsiness sets in at 0.1 to 0.25% (1000-2500 ppm), anything above that is going to cause more serious health effects.

(Source)

Normal CO2 Levels

The effects of CO2 on adults at good health can be summarized to:

normal outdoor level: 350 - 450 ppm

acceptable levels: < 600 ppm

complaints of stuffiness and odors: 600 - 1000 ppm

ASHRAE and OSHA standards: 1000 ppm

general drowsiness: 1000 - 2500 ppm

adverse health effects may be expected: 2500 - 5000 ppm

maximum allowed concentration within a 8 hour working period: 5000 - 10000 ppm

maximum allowed concentration within a 15 minute working period: 30000 ppm

The levels above are quite normal and maximum levels may occasionally happen from time to time. In general - ventilation rates should keep carbon dioxide concentrations below 1000 ppm to create indoor air quality conditions acceptable to most individuals.

Extreme and Dangerous CO2 Levels

slightly intoxicating, breathing and pulse rate increase, nausea: 30000 - 40000 ppm

above plus headaches and sight impairment: 50000 ppm

unconscious, further exposure death: 100000 ppm

Carbon Dioxide Standard Levels

The recommendations in ASHRAE standard 62-1989 are

classrooms and conference rooms 15 cfm per occupant (person)

office space and restaurants 20 cfm per occupant

hospitals 25 cfm per occupant

1 cfm (ft3/min) = 1.7 m3/h = 0.47 l/s

Re: air CON

If I turned up the AC and it got warmer as a result I'd test my theory of the thermostat being screwy by cranking it all the way to the other side. That should prove things.

Re: air CON

Nowadays the temperature usually seems to be set at something equally uncomfortable for both. The myth you bring up is also mostly bullshit. It keeps getting repeated and it's invariably based on a study from the early 2000s done in the Netherlands with a sample size of 16 women... Not exactly well researched. Other studies find far less of a gender bias. Men (on average, as a group) tend to be a tiny bit more biased to preferring slightly cooler temperatures, women (on average, as a group) tend to be a tiny bit biased towards warmer temperatures, but this says nothing about individuals. There's plenty of men who are cold at normal office temperatures and plenty of women who find them too warm. What tends to matter far more is men wearing full length trousers and button down shirts with full sleeves (and often an under-shirt or vest too) while women (especially in summer) wear an above the knee skirt or shorts and a light top with bare arms. Gee I wonder why they're cold...

Re: Freezing in a heat wave

Easily solved by the liberal application of a clue-by-four or other suitable LART.

Re: Cooling

I'd question the wisdom of air cooling motor/servo drivers of that power level with AC air to begin with. Very inefficient. An air-water cooling system with a dedicated water cooling loop would make more sense. Keep the pongy gasses outside and efficiently cool your kilowatts with water (or other liquid coolant). More compact and probably more efficient than an air cooling system.

Re: Complete stop

4-way stop sign intersections are the default in the US in my experience. Whether or not there is good visibility, anywhere there's a 4-way intersection that doesn't have traffic lights it's nearly always a 4-way stop-signed intersection. Because screw having to actually do any traffic planning. Just make it all 4 way stops and it's good.

Re: Complete stop should mean complete stop

Agreed, free right turns on red are extremely dangerous to pedestrians and only make sense in the notoriously pedestrian hating US. Anywhere civilized it's a (usually) terrible idea. The exceptional cases where it makes sense, most countries have signs or lights to indicated right turns on red light are allowed or a slip lane is put in.

"So does that mean SpaceX is monitoring people's usage of Starlink and is looking at what they do? Doesn't Net neutrality exist in space?"

Oh you sweet summer child... Do you really think any ISP isn't looking at their customers data traffic (and probably monetizing the data in some way)? There's no such thing as Net Neutrality.