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Joined 2 years ago
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Cake day: August 3rd, 2023

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  • I think holding more helium in a smaller space is the opposite of what you want. The lifting force is equal to the weight of the air being displaced, so you want as little stuff as possible in as big a volume as possible.

    Maybe if you went the other way round and compressed the atmosphere?






  • Can you elaborate where your confusion lies? It’s a digital good, there is no marginal cost. So they can pretty much price a game however they want. So pricing is mostly about maximising revenue, i.e. get as many sales as you can at the highest possible price.

    A sale is a relatively straightforward strategy where you first sell the game at a high price to all the people who are fine with paying a lot, then you lower the price to sell more copies to the people who weren’t willing to pay the higher price. The result is more total profit. There is a time limit too to create a sense of urgency (“I better buy now so I don’t miss the opportunity”).





  • No magnetic confinement fusion reactor in existence has ever generated a positive output. The current record belongs to JET, with a Q factor of 0.67. This record was set in 1997.

    The biggest reason we haven’t had a record break for a long time is money. The most favourable reaction for fusion is generally a D-T (Deuterium-Tritium) reaction. However, Tritium is incredibly expensive. So, most reactors run the much cheaper D-D reaction, which generates lower output. This is okay because current research reactors are mostly doing research on specific components of an eventual commercial reactor, and are not aiming for highest possible power output.

    The main purpose of WEST is to do research on diverter components for ITER. ITER itself is expected to reach Q ≥ 10, but won’t have any energy harvesting components. The goal is to add that to its successor, DEMO.

    Inertial confinement fusion (using lasers) has produced higher records, but they generally exclude the energy used to produce the laser from the calculation. NIF has generated 3.15MJ of fusion output by delivering 2.05MJ of energy to it with a laser, nominally a Q = 1.54. however, creating the laser that delivered the power took about 300MJ.




  • They are emissions credits. Every company receives some amount of “CO2 emission credits” from the government. These allow you to emit a certain amount of carbon dioxide. If you don’t emit all the CO2 that your credits allow, you can sell those credits to other companies that need more than the government gives them.

    The idea is to put a total limit on the amount of emissions in the country, while letting the market figure out where it makes most sense economically to invest in emission reduction.

    Tesla makes only EV cars and so it doesn’t need all the credits a typical gasoline car company would receive. So they sell them.



  • Skyrim is a totally different beast because the ingredient effects you know about don’t depend on your Alchemy skill anymore: instead you simply discover the effects by successfully making a potion with them. So there’s a sort of minigame of trying different ingredients together to discover what kind of effects they give to potions, which in my opinion is neat because it matches up with how you might do this in reality.

    I think the developers didn’t like the “surprise” extra potion effects you could get in Morrowind, so they changed it in oblivion.