Yet another refugee who washed up on the shore after the great Reddit disaster of 2023

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Joined 1 year ago
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Cake day: June 12th, 2023

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  • The plane on a treadmill one has seemed straightforward to me. Lift is caused by the air moving over the wing and the obvious intent of the treadmill in the thought exercise is that the plane is only moving relative to the belt, so there’s no opportunity for lift (no air flowing over the wings). Any other interpretation seems disingenuous.

    The one that made me scratch my head for a while is the bicycle on the treadmill. People generally know that it’s easy to stay balanced on a moving bicycle, but hard to balance on a stationary one, so is it easy or hard to balance on one that’s on a treadmill?

    A lot of people think that the stability of a moving bicycle is caused by the gyroscopic effect of the spinning wheels, but that turns out to contribute relatively little compared to the force of a body leaning one way or another.

    What actually makes it easy to keep a moving bicycle going straight (or what contributes the most) is that the design has self-correcting steering. When you lean to the right, the shape of the forks causes the front wheel to point left, and vice versa, keeping you going relatively straight as long as you have some minimum amount of forward motion.

    And since that forward motion is relative to the surface the tires are on, it works just fine on a treadmill. You can even find YouTube videos of people who ride their bikes on treadmills, and it’s very evident.


  • Look at you, bringing this thread back from the dead.

    First of all, even if we take what you’re saying at face value, how does it being an original text in any way prove that its contents are true? If I made up a completely original story today about a stuffed animal that eats pickles and poops diamonds, would that mean that such a thing exists?

    Secondly, we can’t take what you’re said at face value because Qur’anic and Muslim scholars are very divided about the origins of the Quran.

















  • Mastadon is to Twitter as Lemmy is to Reddit. So you don’t really follow topics, but you can follow people if you want (I never have) and you can join communities on the topics you’re interested in. Some of the things you’ve mentioned, like Linux, are very popular/prolific here.

    My advice is to set your browsing by All (and whichever of the other one makes sense to you; I usually do New, but sometimes one of the Top ones), then when you see something posted in a community that you’re interested in, instead of clicking on the post, click on the community name. In the sidebar, you can subscribe to the community. After you’ve been doing that a while, if you want you can change your browsing to Subscribed.

    There’s also a Lemmy Explorer, and you can set it to Communities at the top and find the ones that are the most active or are on the subjects you’re looking for.

    Having your posts seen is mostly a matter of posting to active communities with engaging topics.

    Welcome and good luck!