Bazza Posted April 19, 2021 Report Share Posted April 19, 2021 15 x 15 to 95 x 95. Take the digit in the "tens" column, add 1, then multiply the result eg for 15 x15, 1x2 = 2) then "add" 25. So for 15x15, it is 225. For 25x25, it is (2x3=6) 625. for 75x75, (7x8=56) so 5625. Quote Link to comment Share on other sites More sharing options...
Old Man Posted April 20, 2021 Report Share Posted April 20, 2021 2 hours ago, archer said: I had an accounting teacher lo these many decades ago who told me one thing that's stuck with me. He said that if you were the "numbers guy" that you needed to be able to do addition/subtraction in your head plus at least simple multiplication. It'd bewilder all the people who can't do such things and build your credibility in the workplace while dragging out a calculator makes others think "Why are we asking THIS guy? I could pull out a calculator and do it myself." And if you weren't the "numbers guy" you still needed to be able to do addition/subtraction in your head because building your rep as a smart person is a really good thing and makes others more prone to listening to you. Like any Hero player, I can work some fractions and percentages in my head. When I display this ability in public, people are either really impressed, or look at me like I just grew two heads. Or both. What this apparent superpower has not done, so far, is attract girls. Quote Link to comment Share on other sites More sharing options...
archer Posted April 20, 2021 Report Share Posted April 20, 2021 6 hours ago, Bazza said: 15 x 15 to 95 x 95. Take the digit in the "tens" column, add 1, then multiply the result eg for 15 x15, 1x2 = 2) then "add" 25. So for 15x15, it is 225. For 25x25, it is (2x3=6) 625. for 75x75, (7x8=56) so 5625. Ack! You're a voodoo priest! Begone foul spirit lest I rattle my cloves of garlic at thee! Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 20, 2021 Report Share Posted April 20, 2021 Allow me to introduce you to the wonders and magnificent power of doing common logarithms and antilogarithms in your head to one place, purred a seductive voice out of the darkness. Yes, I am a minion of Satan, but my duties are largely ceremonial. ----- Oh, and further update on the group work. A week to go. Only one team has not yet checked in. I think I succeeded in isolating some of the hard cases together. archer 1 Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 20, 2021 Report Share Posted April 20, 2021 3 hours ago, archer said: Ack! You're a voodoo priest! Begone foul spirit lest I rattle my cloves of garlic at thee! I have more... Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2021 Report Share Posted April 21, 2021 Oh, and for the record, when any particle theoretician tries to talk to you about axions, talk to him right back about the Invisible Pink Unicorn, because the two are on the experimental and observational footing, and say that to him in exactly those words. Quote Link to comment Share on other sites More sharing options...
Pariah Posted April 21, 2021 Author Report Share Posted April 21, 2021 I understand that people used to talk about the Late Heavy Bombardment in similar terms (and some still do?). Quote Link to comment Share on other sites More sharing options...
Pariah Posted April 21, 2021 Author Report Share Posted April 21, 2021 I learned a new mnemonic today: Only Bad Astronomers Forget Generally Known Mnemonics tkdguy 1 Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2021 Report Share Posted April 21, 2021 My favorite one of those includes the appended composition-related classes, and is about me: Obese Balding Astronomer Found Guilty: Killed Many Reluctant Nonscience Students Logan D. Hurricanes 1 Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 21, 2021 Report Share Posted April 21, 2021 Butt-Headed Astronomer still gets a giggle. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 21, 2021 Report Share Posted April 21, 2021 If there’s no axioms, it’s not a science. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2021 Report Share Posted April 21, 2021 Axiom ≠ axion. I understand and respect axioms and their role. Axions, by contrast, recall to mind a cartoon that I think was once in the New Yorker, albeit about a different trendy physics theory thing. It was of someone walking past a bookstore, and the sign in the story window said, "Tonight's Talk: Is string theory bull---t?" --- On a different note... Rats. Just heard from Bad Karma Team 1. Got my hopes up too soon. --- Oh, and finally my dean's office has admitted that Chegg is for cheaters and that it is a problem, and reminds us of the proper procedure for dealing with such stuff. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 22, 2021 Report Share Posted April 22, 2021 Oh, my mistake. Sorry. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2021 Report Share Posted April 22, 2021 Hey, you're allowed some. I make lots. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 22, 2021 Report Share Posted April 22, 2021 I’m also tired. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2021 Report Share Posted April 22, 2021 Sleep, then. I don't get enough of it either. And you can't sleep in your own class. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 22, 2021 Report Share Posted April 22, 2021 Nor can you sleep at work. Quote Link to comment Share on other sites More sharing options...
Old Man Posted April 22, 2021 Report Share Posted April 22, 2021 4 hours ago, Cancer said: Sleep, then. I don't get enough of it either. And you can't sleep in your own class. I had a couple of teachers who didn't get this memo. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2021 Report Share Posted April 22, 2021 Could be it was among the 397 memos that came in, of which about 5% have anything of importance in them. Most memos come from functionaries eager to remind you that They Exist and They Are Important. Most of these are less than one page (so the back side is empty) and so are useful as scratch paper. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2021 Report Share Posted April 22, 2021 So many evil questions. So little time. Quote Link to comment Share on other sites More sharing options...
archer Posted April 22, 2021 Report Share Posted April 22, 2021 1 hour ago, Cancer said: So many evil questions. So little time. Build a machine which will allow you to peer into an alternate timeline. Your test will be there. Quote Link to comment Share on other sites More sharing options...
tkdguy Posted April 22, 2021 Report Share Posted April 22, 2021 On 4/21/2021 at 6:50 AM, Pariah said: I learned a new mnemonic today: Only Bad Astronomers Forget Generally Known Mnemonics One of my astronomy teachers who liked to joke around a lot just pronounced the sequence phonetically: Oh-bah-fah-GUK-um. Pariah 1 Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 24, 2021 Report Share Posted April 24, 2021 Quote Estimating conductive heat losses from the feet due to standing on cold ground in boots is complicated by the fact that the extremities are not at the usual body core temperature. Happily I found a reference so I can cobble together this new HW problem. <snowfall emoji> Quote Link to comment Share on other sites More sharing options...
Old Man Posted April 25, 2021 Report Share Posted April 25, 2021 Quote Link to comment Share on other sites More sharing options...
archer Posted April 25, 2021 Report Share Posted April 25, 2021 On 4/25/2021 at 12:50 PM, Old Man said: Dear April, I remember you well. Your production assistant is supposed to collect your phone, calculators, and any personal equipment shortly before filming starts. This should have all been explained to you in an email when you were accepted onto the cast. Maybe you should check your spam folder. Quote Link to comment Share on other sites More sharing options...
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