tjmc

10 ms·

61.
by tjmc 3y ago
Correct this was just the structure. Still impressive for what it was. I did the mechanical services which were put in after in a traditional way but in theory a lot of the services could have been installed within the modules at the factor
62.
by tjmc 3y ago
This isn’t entirely correct. Modular construction is definitely an option and is particularly well suited to projects like hotels and apartments with lots of repeating layouts. Here’s a 4 storey hospital extension that I worked on in Melbou
63.
by tjmc 3y ago
What if you spend your money on solar panels? We produce twice as much power as we consume
64.
by tjmc 3y ago
A couple of ideas I'd love to see... - Night vision app using the truedepth and lidar sensors - Drone/robot/telepresence HUD. It would be incredible with stereoscopic cameras
65.
by tjmc 3y ago
There's calculated risk and reckless risk. Sounds like this was the latter unfortunately.
66.
by tjmc 3y ago
My personal conspiricy theory is that the "lab leak vs wet market" debate is a distraction in order to do nothing about either. Wet markets and gain of function research should both be banned.
67.
by tjmc 3y ago
No they wouldn't. Typically outside air systems shut off in fire mode, but they often keep running if there's smoke due to air pollution. If you need to deal with this you need a HEPA. An alternative for critical facilities like d
68.
by tjmc 3y ago
Agreed. Unfortunately we usually only see HEPAs in hospital theatres, CSSDs and the occasional lab. Air quality standards are still very lacking here. They haven't been updated since COVID or the east coast bushfires in any way.
69.
by tjmc 3y ago
Great Scott!
70.
by tjmc 3y ago
HVAC engineer here. I'd be interested to know if you've done any measurements with outside air coming through standard F5 filters. This is the typical setup for most ducted AC I come across. Much lower pressure and cheaper than HE
71.
by tjmc 3y ago
Air pollution? You do realise most drones are electric right?
72.
by tjmc 3y ago
Ok - fair comment. So I found a copy of Superintelligence . The argument is pulp sci-fi at best: "The final phase begins when the AI has gained sufficient strength to obviate the need for secrecy. The AI can now directly implement its
73.
by tjmc 3y ago
Superintelligence and Life 3.0 seem to come up as recurring references in the discussion. I've only read synopses of both but frankly I find the argument that melevolent AI "escape" could occur without being noticed and thwar
74.
by tjmc 3y ago
I don't understand this argument (the "Terminator" scenario). AI could conceivably self replicate and evolve as software but it still needs hardware to run on, power, networking etc etc. There's no better way to kill tha
75.
by tjmc 3y ago
So true. I read once that fundamental physics research on quantum tunnelling in Japan resulted in antennas that immediately reduced satellite dish sizes from meters across to the size of a dinner plate. Now you can connect with a modern sma
76.
by tjmc 3y ago
Ask Jonesie
77.
by tjmc 3y ago
Interesting that the second answer mentions the enhanced radioactivity of laundry detergeant. One of our smoke detectors briefly went off the other day as I walked under it with a basket of wet clothes straight out of the washing machine. A
78.
by tjmc 3y ago
Hyundai and Kia cars are popular here in Australia (I own a 2017 Hyundai) but I haven't heard anything about thefts here. Turns out it's because of Australian regulations that have required engine immobilisers since 2001 making it
79.
by tjmc 3y ago
It gets worse with lithium air batteries that actually gain weight as they discharge because of the formation of solid oxides from the air. Argonne are reporting 1200Wh/kg in the lab though so still worth it.
80.
by tjmc 4y ago
HVAC engineer here - this looks great Chris. How are you doing the humidity control out of interest? I've done a few datacentres that won't touch ultrasonic humidifiers because they generate dust in areas with hard water. Less of
81.
by tjmc 4y ago
So just so I understand, your source is growing up in one of the several hundred separate Aboriginal nations of Australia, most of whom have completely different languages and are dispersed across a vast nation as big as the continental Uni
82.
by tjmc 4y ago
Got a source for this fact? Generalising opinions to a whole race is rarely wise. Perhaps like anyone else with religious beliefs, those who are offended simply want their culture respected.
83.
by tjmc 4y ago
What's the conversion efficiency with a Cessna 172's ancient engine though? Batteries don't have to get that much better for electrics to dominate the training GA market. There's a Pipistril Velis Electro[1] that shares
84.
by tjmc 4y ago
How about limiting submissions to subscribers only? Imperfect but not unreasonable.
85.
by tjmc 4y ago
The issue to me is not so much ownership as self reliance. I’m Gen X and I can drive, cook, swim, ski, sail, fly and scuba dive. Perhaps I’ve taken things to extremes but it was important for me and my friends to become capable of looking a
86.
by tjmc 4y ago
Given the novel correctly predicted computer generated fiction and music, I don't think you could put it down to a lack of foresight.
87.
by tjmc 4y ago
Agreed. Looks like they're using a half silvered mirror for the real world pass-through which was a technique used by early arcade games like Space Invaders that projected black and white graphics over a painted background.
88.
by tjmc 4y ago
According to this article [1] you have 15-60 seconds until the electric windows stop working. Also, on most cars you can detatch the headrests and use the metal at the bottom to break the windows. 1. https://rac.com.au/car-m
89.
by tjmc 4y ago
For values of "nearby" approximately equal to 149,346,794,944,180 kms.
90.
by tjmc 4y ago
I'd be amazed if some of the VPN providers aren't compromised

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