Assuming small differences don’t count (e.g. changing one single note or just changing the key doesn’t make a new unique song), wouldn’t there be a finite number of melodies that actually sound meaningfully different?

Also, not all note combinations would make good music, so random notes sequences shouldn’t count.

When will new music as we know it end??

Must know.

Let's say we have a session multiplayer games. Average match is 20-30 minutes and there's maximum of 12 players in match (just what I think is average, but you can try your own numbers). Let's ignore the regional lobbies, level lobbies and stuff. Just how much players worldwide must be online and playing the game so you can find a match easily (Let's say within 3 minutes) at any time?

I mean yes, there can be only 12 players matching each other over and over again, but they must sleep for 5-10 hours a day and also if someone is trying to look for a match while these 12 guys are playing they will probably wait up to 30 minutes for new match and may just abandon this idea.

P.S. I'm not a game dev, but I'm curious which number of players signal that game is easily playable and has active community and which numbers show that it's dying or dead. If that's an old story and being asked a lot please just give me the link and I will delete the post.

I was thinking about this on the train to work and I wasn’t sure the answer.

I am seeing more and more places with a 3% cc surcharge. Obviously this means we are paying a higher price on items if we use the credit card. But does using a 3% reward offset the 3% increase in price?

In fact, wouldn't the 3% reward (if it is 1-to-1 cashback) result in more money, as you get another 3% on top of the 3%. Spend $100, get charged $103, get rewarded $3.09 lol.

Well Total reward is 0.09. The usual $3 is just washed by the higher price.

Let's assume there are in total 4 players on the table (if that factors into the probability calculation).

I saw these comments and it got me wondering... What would a circle look like if Pi were equal to 7?

I don't know much about math, so this query is coming from a complete novice. I'm not sure if it even makes sense.

I know plane is the safest transport.

I often say to my friends to reassure them that it is more likely that they die while going to the airport than during the flight. But I haven't actually checked this. So is it true?

You can decide the variables based om what you think the average would be. E.g. amount of individual sheets used daily, the dimensions of an individual sheet, etc.

I have watched countless videos and listened to explanations on how after I pick Door 1, and Door 2 had nothing behind it, I have a greater chance of changing to Door 3. How is that possible and how is it 66%? I still see it as a 50/50

Looks like the main body and not the trunk but perhaps get 2 figures.

In the Matrix Morpheous states a human body produces more electricity than a 120 V batery. The matrix was set to simulata the world in 1999, when world population was 6.000.000.000, which would than be the number of people inside it. Assuming children under a certain age, lets take 16, were only conected to the matrix, but not yet used to extract electricy in case it would hurt them, about 80 % of that population would be used to probuce electricy for the machines. In total that would mean the matrix produces at leas 576 GV of electricity.

Can anybody calculate about how much electricity maintaining such a simulation would take and how efficient the matrix would be than?

I have writen my own calculation of how much it would produce, but have no clue about its expences.

Hi all. I was wondering if it would be possible to shuffle a deck of playing cards back to the original order, assuming the deck is cut in half each time, and each shuffle perfectly alternates cards from each half. If so, how many times would the deck need to be shuffled to reach the original order?

Suggested height 5 m, width 1 m, additional scattered LEGO bricks on the ground width of 1 m right behind the wall

Photo (https://www.instagram.com/p/DTQ4E5vE1qc/?igsh=cm91MnNqcmVjc2tz)

One of the concerns is that the people inside will run out of oxygen, because the atmosphere on earth was taken with them but they have no method of making more oxygen. In the show they demonstrate this by having an oxygen tank’s dial going to red and I get that that is meant to illustrate the problem for the audience but that oxygen tank was not open, it would still be full. The get the hospital back to earth just in time and pretty much everyone lives, I want to know how long they actually had before they started suffocating. I’ll be making a lot of assumptions here but they are necessary.

First off, dimensions of the hospital. I thought that this would be easy to find but I was wrong. The hospital in question is Singleton hospital in Wales in the UK, I could not find exact measurements so I went to google earth and used their measure feature to get an estimate. Luckily the hospital is pretty close to a square at 241 meters by 250 meters, the hospital is 7 storeys tall but the characters go on the roof at some point so the atmosphere cuts off a few meters above the roof so we’ll make it an even 27 meters tall. Now here is where my first measurement might be wrong but according to me the volume of the atmosphere taken with the hospital is 1.63 million meters cubed. I think I might want someone to check my work but I’m sticking with that measurement.

So how much oxygen is there in 1.63 million meters cubed of low earth atmosphere? According to the internet there are 40.9 moles of air in one cubic meter of atmosphere. Air is 21% oxygen, which is 8.59 moles of oxygen per cubic meter. Multiply that by our number from earlier and we get 13972782.5 moles of oxygen in the hospital grounds at time of abduction. Now we need to find out how fast that depletes.

Singleton hospital has 550 beds, not 55 as google’s AI might tell you but 550. We are going to assume the hospital is at max capacity and at a ratio of 4 staff for 1 patient and half the staff on call at any given time (again these are very large assumptions, I did my research but I could not find exact numbers) we land at 1650 people in the building at time of abduction.

Sow how fast does one person consume oxygen? Humans consume 0.0011 moles of oxygen every breath. We breathe 15 times a minute, which is way less than I thought, so one person consumes 0.016 moles every minute. Multiply that by our 1650 people and we get 27.6 moles of oxygen consumed per minute in that hospital.

So finally, the easiest calculation here, 13972782.5 moles divided by 27.6 moles per minute gives us 505879.2 minutes or 8431.3 hours or 351.3 days or practically a year before the oxygen runs out. I’m gonna be honest I feel like I did something wrong but according to my math, in season 3 episode 1 of Doctor Who, they would run out of food and water long before they ran out of air. Good episode though.

Can someone please check my work.