aerodude

5 ms·

1.
by aerodude 6y ago
Having a quick read, they're pointing out that the Bernoulli distribution is only supported for values of 0 and 1 (i.e. it's binary), whereas pixel values for a grayscale image are a decimal value in the interval [0, 1]. When you
2.
by aerodude 7y ago
The number of subgraphs increases exponentially with the number of additional layers (and neurons). If you started off with a network the size of the final pruned network, you would have a dramatically lower chance of finding a winning tick
3.
by aerodude 7y ago
I'd go even further than that and argue that the reason vegan and vegetarian diets have taken off as much as they have is because they became status symbols in the 90s / 2000s.
4.
by aerodude 7y ago
Rockets have an exhaust with constant velocity, and they expel mass in the form of fuel. It's this expulsion of mass that generates the force that propels the rocket. Taking a force balance and assuming no external forces (e.g. gravity
5.
by aerodude 7y ago
>If you're in the USA and fill your tank once a week, you probably spend ~$2000/yr in gas. And that's how much you'd save in gas if you went electric. The electric bill makes a big difference, because you're real
6.
by aerodude 7y ago
I think this is the big one. Consoles and CoD dominated the market for a long time. Has the pendulum swung back towards PC games? I have to confess, it's been a long time since I played anything. Games dev companies just stopped making
7.
by aerodude 7y ago
>50km a day in charge capacity is the absolute best-case scenario. In reality you should count on half of that. I'd count on even less than that. Industrial solar farms average a capacity factor of around 20-25%, dropping as low as
8.
by aerodude 7y ago
> So successful products optimise for the UX of a user who doesn't yet know how to use the product well. And such users really love touchscreens. I think the problem is that touchscreens get ported to applications where there should
9.
by aerodude 7y ago
Wouldn't it be easier to point a camera at the windshield and detect a change in opacity? I would think that's a far easier problem to solve than, say, facial recognition.
10.
by aerodude 7y ago
Wouldn't both of those solutions undermine the advantage of the airframe, which is the fuel cost savings of the larger engines? That said, I think seating pitch and spacing is definitely a conversation that needs to be had. I'm an
11.
by aerodude 8y ago
> Also, if you have infinite energy, there are many things you can do to cool off. Everyone will be able to set their own preferred temperature. Jesus. Someone failed thermodynamics.
12.
by aerodude 8y ago
Ummm... if you have infinite power to pull carbon from the atmosphere, don't you also have infinite power to launch radioactive nuclear waste at the sun using mass-drivers? Sounds like that would be a lot more efficient than what you&#
13.
by aerodude 8y ago
Faster hardware will help, but I'm not convinced that it's the answer. OpenAI Five used on the order of 2000 years of experience to train their agent. There are clearly still huge algorithmic gains to be had. Given how we'v
14.
by aerodude 8y ago
I think this is the real answer. When we developed flight, the measure wasn't "can we fly like birds?" We still haven't achieved that even today, but we fly in otherwise unimagined, but equally powerful ways. We seem to
15.
by aerodude 8y ago
For the majority of people, a car is a utility item; car buyers tend to price in the worst case scenario when buying a new vehicle. Statistical arguments don't really work in these cases, because even if an EV covers 90% of your use ca
16.
by aerodude 8y ago
I didn't just compare with a 747 -- the battery numbers I ran were for the business jet. The 747 obviously looks far worse. If you want mass for a 2 hour journey in an electric business jet, divide those numbers by 5. Also the battery
17.
by aerodude 8y ago
You're right, this is an important clarification. Airlines like smaller airframes that are easy to fill, have fewer engines, and they're okay with breaking journeys up into multiple smaller hops. Passengers don't necessarily
18.
by aerodude 8y ago
Yeah you could; you would probably place the batteries in the wing where fuel is located, which potentially has benefits. I was pointing out that the reasoning was flawed. The engine is not the limiting factor in the design of the wing, and
19.
by aerodude 8y ago
Maybe, though you probably still want to fly above the weather, which puts a lower bound on your power requirements. To get above the weather, the energy needed is m g h plus whatever kinetic energy your aircraft still has (i.e. it's v
20.
by aerodude 8y ago
Gonna comment on your last statement here. The reason aircraft cruise so high is because 1) it's efficient. Flight paths are heavily optimized, and while you spend energy getting up there, you don't spend much getting down. Energy
21.
by aerodude 8y ago
Combined cycle gas turbines are actually higher efficiency than this. The current state-of-the-art is somewhere around 63% thermal efficiency.
22.
by aerodude 8y ago
The first paragraph is incorrect. The wing has to be built to withstand lift, which far exceeds the weight of the engines. The weight force of the engine typically counteracts the lifting force, which means -- if you're clever with you