• 0 Posts
  • 21 Comments
Joined 1 year ago
cake
Cake day: August 15th, 2023

help-circle
  • @toboggonablaze is essentially correct, but let me try explain it in a slightly different way.

    Lasers do a bunch of things to basically shoot a stream of photons at something. There’s basically two ways you can affect how much energy comes out of a laser, you can make the stream denser (more photons per second) - called intensity, or you can increase the energy in each photon.

    The weird part about photon energy is that higher energy photons are of a different “color”, where red is lower than green, is lower than blue, is lower than gamma rays, etc.

    So changing the color of a laser already means you’ve changed how much energy it can output.

    Then there’s another part of your question: how lead gets heated up. Different materials respond differently to different types/wavelengths of light, an example you might be familiar with is that glass panes let through visible light, but not the heat from the sun, or that water also is see through, but can easily be microwaved (by microwaves - low frequency light).

    Basically, a material can be more or less “translucent” in certain frequencies. I’d like to look lead up for you, but Google isn’t cooperating today. But basically, there are frequencies that lead will be more and less susceptible to.

    That’s probably not what you meant with the question, but if that’s the application you want to use the laser for, you might want to take it into consideration.

    So, in summary: color is energy, intensity is energy, you can change both independently, so your question doesn’t quite make sense.

    Also, different targets will heat differently, also not making it a fair comparison.


  • How long food lasts in a fridge will also depend on your climate, cooling speed (as mentioned elsewhere), fridge cleanliness, and how much you use your fridge.

    Keeping everything covered with lids/clingfilm and/or everything vegetarian/vegan will also prolong fridge life. Keeping out ethylene (bananas, apples) from your fridge also helps.

    I just had a soup batch in a few covered jars stay good for 9 days. In summertime things sometimes go bad in a single day.

    The best measure is your own senses, if the food smells or looks bad, it probably is. And even then you can sometimes recook it (wilted vegetables can often be used in soup, stew, or even pie), especially if you catch it early.

    Also here’s a neat summary with some other tips and tricks.




  • There’s a lot of propaganda coming all directions, as parties are interested in taking control of the narrative.

    There are still a lot of candidate explanations, but tensions in Russia are high enough that the truth might not matter.

    Putin has done similar things against Russia, there’s currently an armed insurgency going in Russia with independent groups acting, Russian civil discontent after the fake elections and increasing tolls of war is high and fresh.

    Ukraine hasn’t done anything like this previously and has gone to great lengths to minimise civilian casualties, but have also had some rogue plans/actors.

    It could be Israel trying to keep eyes off of their conflict, they’ve shown to care little for the lives of non-citizens.

    It could be a big brain play by a western state trying to provoke NATO involvement, or clumsily fan unrest.

    It could also be unconnected to the war with IS/China/post-soviet states stirring trouble for their own gains.

    We don’t know yet, but Russia wants to pin it on Ukraine no matter who did it. Ukraine needs it not to be state affiliated, and so must deny.






  • It looks like a reasonable buy for what you’re probably used to in terms of cooking, convenience and diet. As long as you get at least one cooked meal in you each day, you’re doing good. Don’t sweat it if you don’t want to, there’s plenty of other things to worry about.

    If you are looking for some input, I would probably add more varied sources of protein (lentils, nuts, eggs, beans) and fiber (carrots, cabbage, kale, wholegrain), but I also live on another continent and have both other availability and tradition than you might.

    If you’re worried that your food is too expensive, there’s plenty of suggestions in the other replies better geared toward US markets, but I’ll also add that you could make groceries last much longer by learning a bit more about cooking. A lot can be gained by using/substituting with local or seasonal ingredients, as well as re-using leftovers and scraps in creative ways.

    If learning cooking is a steep lifestyle change, you could also find a group to share the burden with. Do weekly meal preps together, or for each other, or do batch cooking of condiments/pickles/sauces and swap with each other. It’s a fun way to learn from each other, keep to the habit, and might even be a nice way to get to know someone.

    Cooking 3 dishes (to get enough variety) for the week’s meal prep is a big ask, but you could do one batch each and swap with a couple of friends.

    Doing batch cooking and canning of sauces is also an excellent way to use up ingredients that are on their way out. Found cheap second assortment tomatoes on a farmer’s market? Pasta sauce for a week! Got too much milk? Make some cheese! Someone’s apple tree yielding too much fruit? Apple sauce, dried apple crisp/cubes/snacks, base for indian/far east curries/stews, in salads, drinks, snacks as fresh whole apples or wedges, made into jam/marmelade, used as substitute for potatoes or tomatoes, and/or as part of delicious pie or other dessert.

    Also: leftovers can almost always be put into a pie crust (water, flour, butter/oil), covered with shredded cheese, and become a Quiche du semaine/pie of the week. With practice you’ll find how much of carbs, protein, fibers and flavouring you prefer in it, and you’ll make an actual great dish you look forward to.







  • War isn’t won by forces alone, you also need the economy, morale and political wherewithal to endure and survive the destruction.

    Neither EU country could stomach a prolonged war, possibly only the Baltics and Finland are at all prepared for a couple years of war, and won’t be able to supply their troops for that long without US support.

    Case in point, Europe is giving about half of the total aid for Ukraine, but almost none of the armaments even though it would be far more preferable for relations, training, logistics, and defence. Part of it is that they don’t keep stockpiles, part is that they don’t have the industry to replace ammunition, neither of which bodes well for a prolonged conflict.