sonium

8 ms·

31.
Increasing Ad targeting effectiveness: RFM Segmentation(alexanderhupfer.medium.com)
1 points by sonium 5y ago|0 comments
32.
by sonium 5y ago
This is nothing compared to how the car industry measures computational power: kDMIPS, kilo-Dhrystone-Mega-instructions-per-second
33.
by sonium 5y ago
I always feel a bit puzzled when one thing is generalized to a the behavior of a Country . It probably come down to the decision of one guy at Bosch who ultimately made the decision to go ahead with this, and this sounds like it was the dem
34.
The price of batteries has declined by 97% in the last three decades(ourworldindata.org)
2 points by sonium 5y ago|0 comments
35.
Ten essential tips how I saved time (and money) developing my first Shopify app(alexanderhupfer.medium.com)
3 points by sonium 5y ago|0 comments
36.
by sonium 5y ago
I guess they could have added the RPi WiFi chip for about USD 1.5 in BOM cost (assuming common industry prices based on distributor price/quantity matrix)
37.
by sonium 5y ago
Step down converters are commonly used in car ECUs. Similar input and output range, power and everything goes on a single PCB. So there must be a different reason.
38.
by sonium 5y ago
I am always wondering that there seems to be demand for a PoE hat. I have never heard of anyone using it. So who uses it? Also how large is Raspberry Pi’s share in commercial applications?
39.
by sonium 5y ago
Cars are commonly engineered to be driven for 8000h which corresponds to 15 years lifetime. Different story for commercial vehicles of course. Fun fact: cars are commonly designed to be operated for 8h in reverse gear over lifetime. Another
40.
by sonium 5y ago
Looking at the chart 2.6 percent seem quite average, so what’s the big news?
41.
by sonium 6y ago
TLDR: a non-polar, non-toxic, ferromagnetic agent is added to the contaminated water. Plastic particles then attach to the agent due to their non-polar nature. The ferromagnetic agent with absorbed micro plastics subsequently can be removed
42.
by sonium 6y ago
Why is the flight time at 40km/h roughly 1.4 times hovering time? One would expect drag reduces the efficiency...
43.
How I made and launched a Shopify app while working full time(alexanderhupfer.medium.com)
2 points by sonium 6y ago|0 comments
44.
by sonium 6y ago
Actually there is quite a lot of change going on. German car manufacturers have standardised on the so called delta-qualification-matrix [1] which basically says what kind of tests should be done to before implementing an change (which can
45.
by sonium 6y ago
To my knowlege there is no practical way to automate placement AND routing of a PCB design (so basicaly only the a netlist as input). Yes, there are autorouters, but they work under the assumption that there is already a sensible placement
46.
by sonium 6y ago
Quantum chemistry software benefits from 'stupid-high bandwith RAM'. It says Gaussian supports this hardware. I remember when running VASP (another popular quantum chemistry software) we were not even using all the cores on a node
47.
by sonium 6y ago
The article mentions BigCommerce and WooCommerce as alternatives to Shopify. I was always wondering what the selling point of this alternatives are - isn't this a winner takes all market? Shopify has the biggest app-store and its most
48.
by sonium 7y ago
The technical term for this is "water splitting" and there are about 20000 papers published on the topic per year. So at least the ones providing money to academia are convinced that it is a problem worth solving. FWIW, the profes
49.
by sonium 7y ago
I don't want to be a nay-sayer but I did my PhD on Hydrogen implantation and spentt enough time as a PostDoc to find a few thing odd here: - All work seems to be purely theoretical although the setup needed is not that hard to come by.
50.
by sonium 7y ago
Single datapoint, Germany: My collegue waited about 2 weeks when ordering 3 month ago the performance variant.
51.
by sonium 7y ago
Speaking of "propaganda" and then using the argument "they have admited guilt in the past, therefore any future action must be malevolent" is interesting...
52.
by sonium 7y ago
It's done using convex optimization https://www.nap.edu/read/23659/chapter/10#39
53.
by sonium 8y ago
As I understand, much of the difficulty controlling this comes from the gyroscopic effect. So wouldn't it be feasable to add a gearbox and a secondary rotary mass to cancel out the angular momentum? If you spin the secondary mass fast
54.
by sonium 8y ago
If someone would like to check the validity of their claim, here is a great calculation tool for drones: https://www.ecalc.ch/xcoptercalc.php
55.
by sonium 8y ago
Why are all the meteors in this specific plane perpendicular to the planets' plane?
56.
by sonium 8y ago
Physics/Chemistry: Solid carbon (e.g coal) is more energy-dense than CO2 (per molecular weight unit). This is why you can gain energy from burning coal. To go the other way round you need to add this energy back in to break the very st
57.
by sonium 8y ago
I agree that the ICE is an excellent train, but people in Germany are looking at the French counterpart, the TGV with envy. Where a ICE rumbles quite consiberably at speed 300kph the TGV is still as smooth as the ICE at 100kph. Not to menti
58.
by sonium 8y ago
Also if you don't really care about yield, many things are not that critical. I did a PhD in semi-conductor physics, and most processes for silicon are actually surprisingly robust (compared to processes of any other material). Also ma
59.
by sonium 9y ago
SpaceX satellites will have a very low orbit. That’s also why they need so many.
60.
by sonium 9y ago
I think there is an interesting problem to solve here is one of mass production. To be cost competitive these vehicles need to be produced as scale. This is nothing that the traditional aircraft business has experience with, but car manufac

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