DropPanda

4 ms·

1.
by DropPanda 2y ago
Today, kindergarten was closed and I had to take much of the day off to take care of my five-year old daughter. We asked Chat GPT to assume the role of a master board game designer and to lead us through the creation of a novel boardgame, w
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by DropPanda 3y ago
I live in a Scandinavian country. Our welfare system is structured such that people are expected to withdraw from the tax pool during the beginning and end of life, and contribute to the pool in between. Adult immigrants will benefit less f
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by DropPanda 3y ago
Maybe I got the unit conversions wrong. The theoretical maximum speed is shown to be on par with world record track cyclists.
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by DropPanda 3y ago
The proposed device is predicted to allow almost double that speed. I think it’s pretty cool.
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by DropPanda 3y ago
No, the article specifically talks about a device where the legs perform work continuously, as in cycling. The device you linked to only lets the legs work during ground contact.
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by DropPanda 3y ago
Can you elaborate on why? Getting hydrogen to an off-grid research station in the Yukon is both difficult and a very poor business case for large-scale investments in off-shore hydrogen production.
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by DropPanda 3y ago
The article states that the capital investment cost of an electrolyzer and pipeline is lower than that of a cable and a substation. But what if you want electricity? If you include a fuel cell and grid connection at the end of the pipeline,
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by DropPanda 3y ago
The questions I ask on topics I am familiar with are usually very demanding. On these it is clear that there are limits to its comprehension and reasoning abilities, but nonetheless, I find it very impressive. Questions I ask on topics I am
9.
by DropPanda 3y ago
I used to share your gut feeling that this is stupid, but I’ve done a lot of calculations on this now and it (dynamic charging, not necessarily inductive) starts making a lot of economic sense on major roads when most traffic is electric. T
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by DropPanda 3y ago
A heavy truck uses in the order of magnitude of 100 kW of continuous power for propulsion at highway speeds. Solar panels on the truck can extend range by around 10%, but increase weight, capital and maintenance cost. When trucks are parked
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by DropPanda 4y ago
Cool app. I am not sure how related this is, but during intense physical exercise, I always start yawning repeatedly. Is this an indication of anything and can I use this app to improve this?
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by DropPanda 4y ago
One application of negative weights in a cost graph could be energy consumption for battery electric vehicles. Downhill, regenerative breaking can result in a net increase of battery charge.
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by DropPanda 4y ago
It’s hard to get data from non-biased sources, given that there are no commercial installations yet. Some numbers are thrown around here (static inductive): https://insideevs.com/news/425972/momentum-dynamics-wirel
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by DropPanda 4y ago
Surprisingly, transmission efficiency (grid to motor) does not appear to be lower with inductive methods than conductive. Numbers above 90% should be expected. A bit lower for the dynamic (in-motion) solutions, but not so much that it’s a d
15.
by DropPanda 4y ago
This is very interesting and perfectly logical. I wrote a fairly recent report looking at a very similar question, and reached the opposite conclusion: night time charging is far better for the grid. That study however focuses on Sweden, wh