tda

28 ms·

151.
by tda 3y ago
Just listened to that episode, what a great story. The dry way he tells how he unexpectedly and almost accidentally transitioned from a project manager to a software engineer is really a treat. Thanks for your podcast!
152.
by tda 4y ago
At some point I expect blades will be made from thermoplastic composites, not thermosets. Then it will just be a matter of melting the blades to recycle them. A lot is happening in that area at least, thermoplastics for airplanes are very a
153.
by tda 4y ago
very helpful comment, you might want to add that to the readme or a pinned issue
154.
by tda 4y ago
The Prius utilizes the Atkinson cycle rather than the conventional Otto cycle, which is more common in traditional gasoline engines. The Atkinson cycle is designed for higher efficiency, sacrificing some power output for improved fuel econo
155.
by tda 4y ago
Are you aware you are essentially describing the original Toyota Prius? the engine is optimised for constant low rpm/low torque/high efficiency, whilest relying on the battery/electric motor for torque and temporary extra pow
156.
by tda 4y ago
With an e-bike the range you can comfortably and regularly cycles roughly doubles (says I). So the number of useful destinations you can use your bike for roughly quadruples. An electric car has enough batteries and other raw materials to p
157.
by tda 4y ago
as an owner of a Van Moof I think they had their moment, but now it's time for the company to go bankrupt. They have made too many mistakes, and focus on the wrong things, so it is time for some darwinian pruning. Let me explain: they
158.
by tda 4y ago
Just confirmed he still does that
159.
by tda 4y ago
Wow: > The loss of sperm oil had a profound impact in the automotive industry, where for example, transmission failures rose from under 1 million in 1972 to over 8 million by 1975.
160.
by tda 4y ago
I remember when my kids were younger they always had difficulty climbing onto the cooler play structures. Somehow the first few steps of the entrance are the most difficult. So I just had to help them get on and they would be fine. At first
161.
by tda 4y ago
No poor people will die from e.g. flying less, downsizing our cars or eating less meat. That is because the really poor (or perhaps half of all humans) don't fly, don't have cars and don't have a cheap meat based diet.
162.
by tda 4y ago
As a rule of thumb, energy use by poor people is negligible with respect to the energy use of the rich. I'm sure Australia, the US and Europe could do just fine witb half their current energy usage. Take for example the situation in Eu
163.
by tda 4y ago
A stable beachy coastline is in dynamic equilibrium. Erosion is the result of more sediment being washed away from the system than is deposited. The root cause of the disturbance in the system is probably some damn in a river which is menti
164.
by tda 4y ago
No, depriving people of energe now is only a temporary inconvenience. Depriving your children with a future is on a whole other level. And that is exactly where we are heading: climate catastrophe leading to famine, drought, flooding, unman
165.
A widespread logic controller flaw raises the specter of Stuxnet(wired.com)
3 points by tda 4y ago|0 comments
166.
by tda 4y ago
How do you mitigate the flood risk in a basement. Sewer malfuntioning, heavy rain, but also firefighters flooding your burning house? I would think (no numbers to back it up) for most houses the risk of flooding is higher that the risk of b
167.
by tda 4y ago
And the best thing: new top layers are applied frequently (sometimes yearly). And they are literally applied overnight: construction starts at 23:00 and is completed before 06:00. And even better, the road isn't even closed. One night
168.
by tda 4y ago
I'd be so happy with a 24,000 page PDF, cause then at least you know where too look, and you can the search tool. I programme Siemens hardware and the docs I need are spread out over many tens of PDFs (of 100-1500 pages). I haven'
169.
by tda 4y ago
Somehow this feels like the logical conclusion of capitalism/big tech/AI: optimize human interaction into some soulless algorithm but pretend to be human enough to fool the masses. This somehow feels pretty dystopian, and I hope t
170.
by tda 4y ago
rinse and repeat that a few times, and the only remaining winning move will be not to play
171.
by tda 4y ago
I guess the bigger the company the more interesting niche problems and processes there are that are worth spending a lot of time improving/automating etc. And yes a big company has more "high end" perks (better hotels when tr
172.
by tda 4y ago
What helped for me was switching from a 5000 employee company to a 50 employee one. I really loved my previous job, but just witnessing the politics made me want to quit, and I'm glad I did.
173.
by tda 4y ago
I just got my feet wet with an s7-1200 and I could not have imagined how horrible the programming of a PLC is. I spent a day just to get the plc send out UDP packets at 25Hz. Apparently going above 10Hz is not really supported so you have t
174.
by tda 4y ago
I saw the same video, and had the same thoughts. I saw a comment mentioning flashing the Emporia with ESPHOME, of which I am a great fan. What I really like about that option is you can push all the logic to the "edge" device with
175.
New research shows hydrogen-reduced iron has superior properties(group.vattenfall.com)
112 points by tda 4y ago|57 comments
176.
by tda 4y ago
Are you sure it is the best performing? The article only compares to influx and timescale, which are very far from the fastest timeseries databases out there. How does it compare to clickhouse? I found this https://questdb.io&#x2
177.
by tda 4y ago
Didn't try this yet but what caught my attention is that you can write a (micropython) program and run it on the hub itself instead of on some mobile device. The options to control a LEGO boost hub over bluetooth are rather laggy and l
178.
Pybricks Python Coding with Lego(pybricks.com)
1 points by tda 4y ago|1 comments
179.
by tda 4y ago
Can confirm everything you said from experience, including the remarka on the hubelino marble run. Quite a fun set but clearly not the same quality as real lego
180.
by tda 4y ago
I find this very fascinating, but when searching for more information online I only found very shallow aeticles rehashing the same bits of info. Where is the 3d pointcloud of this city? Sure the most intricate 3d structure of old os a prime

More ›