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InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)LU
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242
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2 yr. ago

  • Whoever came up with the "What doesn't kill you makes you stronger" adage never met a person with locked-in syndrome. That's where you're totally paralyzed but also totally conscious. There have been patients where the doctors thought they were in a persistent coma, but they were actually going crazy trapped in their own skulls.

  • Not quite the same as the two magnets. If you have a big fan and a square sail, you're moving air, which has mass and is not attached to the boat. That alone will cause a force that moves the boat backwards. The moving air that hits the sail will not fully cancel that force due to frictional losses and air spillage from the edges.

    Racing yachts are a different story. They have rigid sails that are shaped like airfoils. Blowing across an airfoil causes lift. So a big fan blowing perpendicular to the axis of the boat across such a sail would move the boat forward. But it's much more efficient for the fan to blow backwards without the sail, hence airboats and hovercraft.

  • How could the officer not see the parked car, necessitating an unnecessary evasive maneuver? Because he was surprised by it. Why was he surprised by a stationary object? Were his eyes on something other than the road, like maybe his phone?

  • I would 100% patronize a restaurant that had full transparency and decent no-frills food. They publicly post all their expenses and how much profit they make. Charge a table/dine-out fee, then actual cost of food and prep on top. Pay their workers in full, so no tipping required. Explain things like dining hours that help the business keep down costs.

  • Aren't those all still based on basic addition and multiplication? If you don't know 2+2=4, breaking down 2*3 into 2+2+2 doesn't help.

    Memorization is about speed. Knowing 3*4=12 is much faster than 3+3+3+3.

  • We use an electronic timer. Started with adding single digit numbers. He needs to provide answers before the timer goes off. Right answer adds a dime, but wrong answers or no answer before time expires subtracts a dime. Identified the numbers he had trouble with. We play until he's taken a couple dollars from me. I always let him win a couple dollars to keep up the interest. Lowered the time until it was down to a second.

    Most math is learning and applying a technique. But there is no technique or formula for adding/multiplying single digit numbers - it's all memory. That's what I did with my grandkids, and it frees them to learn the techniques without struggling with the basics.

  • I played math games with my grandkids for pocket change. Get it right, I give them a dime. Get it wrong, they give me a dime. It's cost me at least $100, but they can now accurately do basic math in their heads almost instantly. My grandson went from failing math to excelling in the subject. He can do math faster than using a calculator.

  • I don't see how asking for and not receiving a raise puts any more pressure on the company to surplus her. I agree with her that it would signal that she will quit if they don't pay her more.

    It's all moot at this point, because it looks like she's going to get disability for job stress related illness. At least that's what she's told me her doctor said.

  • Thank you all for the suggestions! One that I mentioned to her is to ask her doctor if her recent health issues could be related to the fact she gets stressed dealing with corporate customers, who can be very demanding. It's an increasing proportion of her job that is not part of her original job description (actually the reason she wants to quit). Let it slip in the employee chat system that she's seeing a doctor about workplace stress induced illness. Management will see it as a prelude to a workplace disability claim and want her out.

  • If the fan blew across an airfoil aligned perpendicular to the axis of the boat, it can definitely generate thrust. The top of the airfoil will develop a lower pressure than the bottom, and the difference in pressure causes force that moves the boat. It's just way more efficient to use a fan to push the boat.

  • Assuming the chance of either sex is equal, this problem can be broken down into multiple cases. The first is that there are two unseen kids in the house. What's the probability they are both boys? 1/4. Now the door opens and you see two boys. The probability both are boys is 1/1. But if you only see one boy, the problem simplifies into the probability of a child being a boy. One of the probabilistic events postulated in the original problem is fixed at 1. So the answer is 1/2.

    Think of it as the two coin flip, except one coin has two heads. That simplifies to a one coin flip.