Can new kinds of numbers be introduced in mathematics (like negative numbers, irratio...?

> Can new kinds of number be introduced in Mathematics? Yes. The last structure to be introduced and to be generally recognised with a name including the word "number" was the Surreal numbers […

Top stories for Long   Can new kinds of numbers be introduced in mathematics (like negative numbers, irrational numbers and imaginary numbers)? Is it possible there are going to be new numbers? Alan Bustany, Trinity Wrangler, 1977 IMO • Updated November 21, 2020 Can new kinds of number be introduced in Mathematics? Yes. The last structure to be introduced and to be generally recognised with a name including the word "number" was the... Read more » 589 28   Is the US winning the tariff war? Sam Robbins, A keen socio-political observer • Updated September 19 I have a confession to make. When Trump announced that he was going to (trade) war with his northern neighbour, he spoke about the iniquities of the horrible trade deal that... Read more » 3.6K 394   How do hotels decide which room to give a guest? Example, I'm on the road, I stop at a Hampton Inn for the night, and ask for the standard king bed, non-smoking, and they have 20 of those open. How do they decide if I stay in room 219, 407, 333 etc? Charlie Rand, worked at U.S. Census Bureau • Answered September 20 Several years ago, I was cooking at a restaurant hotel and I asked the front desk guy this exact question. It was a fairly small hotel with fewer than 100 rooms. He explain... Read more » 4.5K 178   What would happen if the world switched to a 400 Hz electrical system, and why is it not currently practical for transmission lines? Loring Chien, electrical engineer and audiophile for 45 years • Updated August 16 400 Hz AC power is used in aircraft electrical systems instead of 50/60 Hz AC power. It comes from generators on faster turning aircraft engines and the higher frequencies ... Read more » 813 75   Who told Trump his IQ is 130? Did Trump tell us this? Judy Rofe, An Australian who never lost sight of the bigger picture. • Answered July 23, 2023 When donald trump was ostensibly referred to as a "moron" by his Secretary of State, he reportedly claimed he would be more than delighted to share the results of his IQ te... Read more » 4.5K 736   Why are attractive men so rare? Dennis Watson, Cranky Millennial • Answered September 13 It's true. Studies show that women find the vast majority of men unattractive. So, this should give men every reason to give up, sit on the sofa, and order more pizza. I'm k... Read more » 4.5K 412   What's the weirdest or most outdated piece of tech you've seen still running in a company because it "just works"? Gary Karaff • Updated July 28 Not so very long ago, my most experienced millwright asked me to replace his stethoscope that had broken. I was a bit puzzled, so I asked why the heck he needed a stethosco... Read more » 1.1K 51   What are the typical salaries for assistant professors (young, tenure-track) in the US? Barry Rountree, Computer Scientist, LLNL • Answered July 3, 2018 Salaries typically vary by geography, department and university. I wouldn't be surprised to see a spread from $30k/yr (English assistant professor at a small, midwestern li... Read more » 111 23   Why did Japan follow the British system of driving on the left side and not the American system of driver on the right side? HotGazpatchoSoup, MSc Science & Education, Monash University, Clayton Campus (1997) • Answered September 3 You understanding of history is not that good. Your American hubris is showing too. When Japan entered the modern world in the nineteenth century, it looked to the world's s... Read more » 4.6K 486   Do fathers and daughters have children? SkyGod • Updated September 16 A very nice lady I was going out with years ago once told me that she had an abortion when she was 14 years old after being raped by her father. She said she was just glad ... Read more » 2.2K 434   3blue1brown says that wherever pi shows up, there will always be some path leading back to circles. What do you think about this? Is it a useful observation? Keith Ramsay, Ph.D. in mathematics • Updated February 15, 2020 A2A. Let me emphasize a point Alon Amit made in his answer: the definition of [math]\pi[/math] in terms of circles is not the simplest, most natural one. It was just historically first. Bot... Read more » 221 19   If a nuclear powered aircraft carrier was sunk in deep sea water, would the reactor be cooled enough by the sea, or would it explode? Marcelo Pacheco, Studying thorium energy since right after Fukushima • Updated September 20 The only time a nuclear reactor actually exploded was in Chernobyl. It happened because the operators broke a cardinal rule on thermal spectrum nuclear reactors: You NEVER, ... Read more » 2.5K 118 Read more in your feed

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