froj

6 ms·

1.
by froj 1y ago
I think this fixed wing drone https://ageagle.com/drones/ebee-x/ would fit your usecase.
2.
by froj 3y ago
3g for less than a second is really not to that much. Most people can easily withstand 3g sustained for minutes with (almost) no preparation. Just don't forget to breathe and maybe contract your leg muscles a bit. Many can go up to 7g
3.
by froj 3y ago
Maybe I need to refresh my memory. I should have some eggs lying around still. The nematodes also come with the lake water?
4.
by froj 3y ago
I think back in the day it was recommended to have at least 5 liters per adult triops. My tank was around 100l and I usually had at least a handful of them. Always females only; the males somehow never made it. They would only get eaten by
5.
by froj 3y ago
I had Triops as a kid and never observed cannibalism. Is your tank big enough?
6.
by froj 4y ago
Well, 0th order approximations are fine if the gradient is indeed about zero for all intents and purposes. It's just very much not the case for exponential functions. Maybe your analogy could work if you want to say that exponential gr
7.
by froj 4y ago
The whole point of exp(t) is that the derivative at t is equal to the value at t. Thus if y_approx = 1 then the derivative is also 1 and not 0 (i.e. constant). If you're exponentially growing, but currently it's approximately cons
8.
by froj 4y ago
There's this super over-engineered fully automatic fish elevator to go up a 20m tall weir [1] (pdf and German warning). Interestingly, there is no safe way for the fish to go back down, yet. [1] https://www.bkw.ch/filea
9.
by froj 4y ago
It's not the object's mass that you care about, but its ballistic coefficient [1]. An object which is very heavy, but also very big, will deorbit just as quickly. [1] https://en.wikipedia.org/wiki/Ballistic_co
10.
by froj 4y ago
In my experience, the old-school electronics companies believe "if you can't stick a label on it, you can't sell it". In their eyes software is a necessary evil, but it only costs money and doesn't generate any reve
11.
by froj 5y ago
For injection molded parts you could start by paying a local consulting firm that specializes in mechanical design to take a look at your part. They will probably be able to help you find a manufacturer and your design will have to be verif
12.
by froj 5y ago
In TFA they count 7.6B humans, but the mass is only the "dry-weight of carbon". So I guess the average person only contains about 8kg of carbon.
13.
by froj 5y ago
I used to work with small fixed wing drones [1] and had birds of prey remove the battery pack from the aircraft while in flight. I always wondered whether they knew or if they just instinctively went for the "head" of the plane
14.
by froj 5y ago
Could be a neoboletus luridiformis with an unusually slim stem. In any case, I would say the color saturation in this picture is cranked up quite a bit.
15.
by froj 5y ago
Ships usually have inertial measurement units for heading and attitude. Even smaller boats have IMUs for better autopilot performance, but vessels of this size have sensors precise enough for strap-down navigation with little enough drift t
16.
by froj 6y ago
FANET [1] is specifically for paragliding. It is also LoRa based and open source, but so far only Skytraxx and Naviter really seem to be using it in their products. I think it's exactly what you're looking for, though. [1] https:
17.
by froj 6y ago
What about data matrix [1] instead of QR? The smallest symbol possible is 10x10 so that should be tweetable. [1] https://en.wikipedia.org/wiki/Data_Matrix
18.
by froj 6y ago
I don't know much about cattle or dairy farming, but in Switzerland cows are running around in the mountains with big bells around their neck and horns on their heads. Would such a collar really be that dangerous for them?
19.
by froj 6y ago
We have a similar situation and use ccache and distcc is setup on each dev's workstation. It also helps to use forward declarations instead of including header files whenever possible.
20.
by froj 6y ago
That seems like a false analogy. In the case of thermal radiation you actually are emitting photons with a total power of 800W independent of your environment.
21.
by froj 6y ago
> normally it is balanced by a similar flux of thermal radiation coming in from the environment The parent comment wasn't talking about net power dissipation. 800W radiation would be the case if the environment was at 0K. Usually, t
22.
by froj 6y ago
In control when you say optimal it usually just means that you solve your problem by defining a cost function which you try to minimize within constraints. For example in motion planning your cost could be distance traveled + time spent +
23.
by froj 6y ago
Are there any plans for attitude control or at least de-spinning?
24.
by froj 6y ago
According to [1] the numbers for Switzerland are about 13k tests and 1.7k cases per million, which would be somewhere below the Faeroe Island. [1] https://www.bag.admin.ch/dam/bag/de/dokumente/mt/k-u