calaphos

12 ms·

91.
by calaphos 6y ago
Quite a problem, especially when considering cryptographic implementations. Here's am article from 2016: https://dl.acm.org/doi/10.1145/2851486
92.
by calaphos 6y ago
But arguably what makes rust hard to write is the borrow checker which eliminates a lot of painful runtime debugging.
93.
by calaphos 6y ago
C++ might not be harder in theory but at least for me right now it is a lot harder to learn than rust. C++ just has so much stuff and different ways of doing things (of course, it's been in use for decades) that it I feel quite lost a
94.
by calaphos 7y ago
There is the RoboCup [1], most participants are (post)graduate students or alumni. The competition is more focused on the academic aspect with a conference in the end. [1]: https://www.robocup.org/
95.
by calaphos 7y ago
The AVX ALUs also go into power saving when not used and take a couple of cycles to switch back on, delaying the first AVX instruction. There is afaik even a paper on a side channel attack that uses this.
96.
by calaphos 7y ago
The cpu just takes a bunch of numbers and applies the same operation on them in one instruction instead of a bunch single ones. E.g. if you are writing some simulations/game code where you deal with 3d vectors a lot the use case is the
97.
by calaphos 7y ago
Extremely good for weight and extremely poor for volume. To reduce the gasses volume storage is usually either highly compressed (200-700bar) or cryogenic (30K), like in the space shuttles tank. In both cases the volumetric density is still
98.
by calaphos 7y ago
Modern aircraft, as in 787 and a350 are mostly carbon composite structures by now. I image that would be even more the case for a blended wing body Design
99.
by calaphos 7y ago
In Germany in the 80s the Transrapid, a maglev train was developed. Sadly, the technology was dropped in favor of the ICE, predominantly because that one could use the extensive existing rail network. The only Transrapid Line actually opera
100.
by calaphos 7y ago
Afaik the problem with air travel is not only the CO2 released from burning fuel, it's also the various byproducts getting deposited in the higher atmosphere. Synthetic fuels avoid the net CO2 Release but still have those impacts.
101.
by calaphos 7y ago
As a fan of epsresso I a absolutely agree with that fact that you should consider your own grinder and machine, but mostly for the massive increase in quality, certainly not saved costs. Even with second hand gear you are easily looking at
102.
by calaphos 7y ago
For choosing the right product based on a list of spec requirements I can highly recommend the price comparison website Geizhals [1]. They offer an insane amount of filter options over a wide category of products. Want USB C hub with Power
103.
by calaphos 7y ago
At least in Germany I usually get a QR code for the online bought postage I just show at the local post office on my phone. They print out the the postage thing on a sticker. I need to go there anyways with the package.
104.
by calaphos 7y ago
You can take a Canvas element and draw anything you like on it - even hardware accelerated 3d using webGL. I think there are some projects trying to (re) implement a 2d user interface, rendered onto canvas. However the issue id that you wil
105.
by calaphos 7y ago
I image most of these 'low level' approaches involve OpenGL which seems to be a bit troublesome on macOS. I can recommend to have a look at webGL, it's basically a limited openGL subset that is called from Javascript. Really
106.
by calaphos 7y ago
In Airbus case, who have been doing full fly by wire for a while now, there are at least two completly seperate software implementations which run in parallel and cross compare the result. They also run on redundant flight computers with di
107.
by calaphos 7y ago
I 've heard thag Facebook uses microphones in smartpones to correlate users with TV or billboard ads. They use ultra or infrasound to broadcast information to nearby phone microphones so Facebook (or others) now that you watched the ad
108.
by calaphos 8y ago
maybe you could connect them with something, so you cant loose them. A cable would work for that :)
109.
by calaphos 8y ago
The biggest problem with cars, at least in European cities is the amount of space they take. Despite rising rents, making some cities unaffordable for people working there, we still mandate parking spaces for every build flat and use large
110.
by calaphos 8y ago
Sounds like they are stuck in a local optimum with their site.
111.
by calaphos 8y ago
The (closed cycle) cooling compressor uses helium as a working fluid, but Tue quantities are usually very low. Hight temperature superconductors are usually cooled with just liquid nitrogen