prime_number_314159

@prime_number_314159@lemmy.world

• ⁨Comment⁩ on ⁨Can someone fact check this⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:

  Owls don’t weigh 16 pounds (except for fat owls). 300 kilowatts is a rate of energy, not a total quantity of energy. 300 kilowatt hours (which is possibly what they meant?) Is only around 260,000 kilocalories (which is called “calories” on food labels because units of measure were made up by humans). According to an extremely naive google search, that would only take an owl 5 years to consume, rather than 10. If the original number were correct, that would mean this owl eats 8,000 calories per day. Which is not typical.

  Onto the broader point, the efficiency of birds in flight is not as simple as this image suggests. There is no (useful) formula that takes the weight of a bird and the distance it will fly and tells you how many calories that takes. Birds can fly at different elevations, at different speeds. They can fly with or against the wind. They can change many things about how they fly to be more efficient or less efficient.

  If you really want to know how many calories it takes for an owl to cross the ocean, first get the owl to the point of starvation, then bring it on a boat to the middle of the ocean. Feed it a fixed number of Tootsie pops, then sink the boat. With nowhere else to land, the owl will be forced to fly to shore. Based on how far the owl makes it, you can determine how far each tootsie pop allowed it to fly, and derive calories per mile from that.

• ⁨Comment⁩ on ⁨Can someone fact check this⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:

  They would hit the mountains at that height, and the FAA requires them to be up above airplane traffic anyways. After that, it gets crowded right above the launch pads, and sometimes there’s shooting stars and stuff, so some satellites are forced to go even higher.

• ⁨Comment⁩ on ⁨IT'S A TRAP⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  Two sets with infinitely many things are the same size when you can describe a one to one mapping from one set to the other.

  For example, the counting numbers are the same size as the counting numbers except for 7. To go from the former set to the latter set, we can map 1-6 to themselves, and then for every counting number 7 or larger, add one. To reverse, just do the opposite.

  Likewise, we can map the counting numbers to only the even counting numbers by doubling the value or each one as our mapping. There is a first even number, and a 73rd even number, and a 123,456,789,012th even number.

  By contrast, imagine I claim to have a map from the counting numbers to all the real numbers between 0 and 1 (including 0 but not 1). You can find a number that isn’t in my mapping. Line all the numbers in my mapping up in the order they map from the counting numbers, so there’s a first real number, a second, a third, and so on. To find a number that doesn’t appear in my mapping anywhere, take the first digit to the right of the decimal from the first number, the second digit from the second number, the third digit from the third number, and so on. Once you have assembled this new (infinitely long) number, change every single digit to something different. You could add 1 to each digit, or change them at random, or anything else.

  This new number can’t be the first number in my mapping because the first digit won’t match anymore. Nor can it be the second number, because the second digit doesn’t match the second number. It can’t be the third or the fourth, or any of them, because it is always different somewhere. You may also notice that this isn’t just one number you’ve constructed that isn’t anywhere in the mapping - in fact it’s a whole infinite family of numbers that are still missing, no matter what order I put any of the numbers in, and no matter how clever my mapping seems.

  The set of real numbers between 0 and 1 truly is bigger than the set of counting numbers, and it isn’t close, despite both being infinitely large.

• ⁨Comment⁩ on ⁨Is anyone NOT steaming their Music?⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  I’ve been buying and ripping CDs since 2007. I average 8 per year, and it limits my music discovery speed a fair bit - but that’s OK.

  When someone suggests a new song/band, I listen on YouTube/Vevo, and put up with the ad. It’s fine. It convinces me whether I want to buy their CD or not most of the time.

• ⁨Comment⁩ on ⁨Fucking why though? Are cows endangered?⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  In order to meet a rising global demand for cheese, farmers must produce more cheese than they have in previous years. As a society, we have done fairly well at using the best/easiest land to raise cows on for raising cows. Additional cows to produce more milk require either working the same lands harder, which requires bringing in feed, water, and minerals, as well as increasing the risk of diseases, and thereby increases the price of the milk for making cheese, or else raising cows on new, typically less favorable lands.

  Some industries can offset this rising cost with improvements to technology, or finding areas of the world with lower labor costs, and some governments support agriculture through tax policy, or subsidies to help keep prices low. From 1949 until 2014, the US government ran a program to buy cheese when the price fell too low, and sell cheese when the price ran too high, in an effort to stabilize prices.

• ⁨Comment⁩ on ⁨Everyone thinks the Deus Ex remaster looks awful and they're right: 'They really turned those 1999 graphics into 2003 graphics'⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  “AAA” gaming began as a reference to the “AAA” creditworthiness rating, meaning (essentially) “certain to repay the loan” // “certain to earn more than the development costs” (contrarespectively). AAA gaming has always been about the safe bet, the easy money, and the tailored to mass market design.

  High budget games can only have so much ROI, so there’s kind of implicitly a limit on how much risk is tolerable for investors/publishers. Meanwhile, a game that costs a few million (or even less) could be the next big success, and rake in a massive sum - enough to justify its own budget in addition to many failed attempts to craft a star.

  Even more risky is indie gaming, where the cost of development is provided by crazy people that want to produce “fun”, and gain money as some kind of (important) side effect. That’s where you get the wild “no one (in the know) would expect this to work” ideas, and most of them do fail, just as expected. The ones that are good enough to make it are by nature surprisingly good - indeed, this surprise is why publishers won’t go after the same concept under most conditions.

• ⁨Comment⁩ on ⁨Can you think of any now?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  It’s not just about slavery. There was also state’s rights (to slavery), and the economic disparity (turns out free men work harder than slaves?!), and a clash of religious ideals (people that interpret the Bible as pro-slavery vs people that believe benevolence requires abolition). There were even one or two spots where water usage rights and federal funding were in controversy.

• ⁨Comment⁩ on ⁨proof of wormholes⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  I only buy generic brand medications, so my kids are at risk of generic brand autism. Is this going to be a signifier of a low income upbringing when they reach adulthood?

  Should I switch to name brand Tylenol for their future?

• ⁨Comment⁩ on ⁨A cat/sheep hybrid⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  A keep

• ⁨Comment⁩ on ⁨Macaroni and cheese⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  I suspect it started with self censorship (“as f”) rather than abbreviation.

• ⁨Comment⁩ on ⁨I have tomorrow off :)⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  That’s Anthony Daniels, playing the role of the god of the Ewoks.

• ⁨Comment⁩ on ⁨Anon crunches some numbers⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  Twenty years ago was and will always be 1992, due to the world ending in 2012.

  You may see signs of continued world activities, but this is actually the post-world credits scene, which is expected to go on for 10 to the power of 97 years, and cost 10 to the power of 112 dollars when you account for inflation.

• ⁨Comment⁩ on ⁨That's the most foul, cruel, and bad-tempered rodent you ever set eyes on!⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  As with most news stories, you are still welcome to guess the Simpsons episode that predicted these events.

• ⁨Comment⁩ on ⁨Do you still remember?⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  I was going to take it in a 1987 Toyota Camry, manual transmission, but the clutch burned up (not my fault… Maybe), and my parents didn’t want to get it fixed. I took the test in the driving school’s only manual transmission car, which was… A gray sedan, with a second brake pedal for the passenger.

• ⁨Comment⁩ on ⁨Do you still remember?⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  Which mass transit vehicle did you pass your test in? How did parallel parking go?

• ⁨Comment⁩ on ⁨investment⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  You do not need to objectively benefit from a positive outcome in order to enjoy it. My local sports team wins at least once per blue moon, and I feel good despite neither profiting from, nor contributing to their successes.

  I can understand if it doesn’t do it for you, but I’ve found a great deal of joy in things that do not materially benefit me. I like it better that way.

• ⁨Comment⁩ on ⁨Anon's grandpa does his own research⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  They take up mental railroading instead?

• ⁨Comment⁩ on ⁨Unmatched power⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  The text on a Twix wrapper runs in the same direction as the Twix inside, so it’s better to say they’re top and bottom Twix - otherwise it’s ambiguous based on the direction of the packaging.

  Also, for double blind experimentation, she shouldn’t know whether it’s a left or a right.

• ⁨Comment⁩ on ⁨When you are ruining your day ranting about something remember THIS⁩ ⁨⁨5⁩ ⁨months⁩ ago⁩:

  It takes way longer than that for me to share my opinions. The Earth should be rotated at least 30-40 degrees.

• ⁨Comment⁩ on ⁨Rocky rock rocking⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  Pretty sure stones have to weigh 14 pounds…

• ⁨Comment⁩ on ⁨Hey, do americans just want to take a break from normal politics for a bit and focus all our efforts solely on the wild boar problem?⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  That’s my favorite kind of conservation.

• ⁨Comment⁩ on ⁨"Americans can't coo-"⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  According to my brief googling, there are 131.43 million households in America, and either 79 or 80 million American households own dishwashers. I could not find a breakdown by state, but I suspect they’re predominantly popular in wealthier areas, and less popular in poorer areas.

• ⁨Comment⁩ on ⁨cherry pickers⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  They’re vaccers because they suck.

• ⁨Comment⁩ on ⁨Having a baby? Use this one weird trick!⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  Anyone born to an American citizen is an American citizen, regardless of where it happens. Most foreign countries don’t grant citizenship based on place of birth the way the US does, so if you go to Afroeurasia expecting to get a dual citizenship for your child, it’s likely to fail, but they would still be an American.

• ⁨Comment⁩ on ⁨[deleted]⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  Vowels have low point values, so I would prioritize getting new tiles. It might be different if you could somehow play six or seven of these tiles, but I think 4 vowels left is still more than the optimal number.

• ⁨Comment⁩ on ⁨[deleted]⁩ ⁨⁨6⁩ ⁨months⁩ ago⁩:

  You’re not showing the rest of the board, so of the letters visible, ‘oi’ on the beginning of oozed is the best I see.

  “Aeon” or “iota” would be much better, if there’s a cooperative n or t.

• ⁨Comment⁩ on ⁨Do tell!!!⁩ ⁨⁨7⁩ ⁨months⁩ ago⁩:

  In order to make sourkraut, you need cabbage, salt, a knife, a cutting board, a big bowl, a scale, and an appropriate storage container for fermentation.

  Start by rinsing the outside of the cabbage. Peel off any leaves that are damaged badly, cut out any smaller bad spots, then quarter each head, remove the core, and cut small strips. Weight the cabbage you have remaining, divide the weight by 50, and put that much salt together with the cabbage strips in the large bowl. Mix the salt and cabbage occasionally, and either punch it, or squeeze it. After 2 - 4 hours, there should be a good bit of liquid at the bottom of the bowl.

  Transfer the cabbage and the liquid to your fermentation vessel. Use weights or a plastic bag full of water to make sure the cabbage is below the salty water. Wait for 6-12 weeks, checking on it at least once per week.

  Lots of things can be used for fermenting, but the best is a stone crock with a lid that has a water seal around the outside, and a gas release valve on top. The cabbage can smell strongly during fermentation, so get approval from anyone you live with before attempting this recipe.

• ⁨Comment⁩ on ⁨Do tell!!!⁩ ⁨⁨7⁩ ⁨months⁩ ago⁩:

  If you start with the laces correctly run through the eyelets along the tongue, and with each end roughly the same length, you can pull the lace ends directly up, cross them in an X shape, then pass one end below the x, and pull the slack out of that. Then make a loop on each lace tail, but with opposite chirality. Reach your thumb and index finger through each loop, and grab the edge of the opposing loop which is further from the end of the lace. Now pull each loop through the other, tighten up the knot, and dress it until it looks presentable. If the resulting knot is 90 degrees from the intended direction, use the alternate chirality on each of the loops next time to fix that.

  A bonus of this approach is that it’s the same on your shoe as it is on someone else’s, so you can help children with their shoes more easily.

• ⁨Comment⁩ on ⁨How would a stateless society handle serious threats such as mass murder and terrorism?⁩ ⁨⁨7⁩ ⁨months⁩ ago⁩:

  Neighborhood defense crabs, yes.

• ⁨Comment⁩ on ⁨Can I still consider myself a “young woman” after I turn 24? I turn 24 in March (next month).⁩ ⁨⁨7⁩ ⁨months⁩ ago⁩:

  My grandmother said that old is always 3 years away, but IMO, the end of being a “young woman” is somewhere around 32.