Comment on Tethered Bottle Caps
entropicdrift@lemmy.sdf.org 4 days agoY’know how you hold the bottle with your hand to lift it? Believe it or not, you can hold it by the neck, and even slightly touching the little plastic ring the cap is tethered to will keep it from spinning.
leftzero@lemmynsfw.com 4 days ago
Y’know that physics principle called the lever principle, or principle of moment…?
Thing is, if you grab a bottle by the neck and try to tilt it, you have to deal with the whole momentum / mass of the bottle, which is a significant amount of torque on your wrist, especially if you’re awkwardly trying to hold a cap that’s clearly not designed to be held this way at the same time.
If you instead violently rip the cap out in an entirely justified fit of righteous rage and grab the bottle by it’s center of mass, as normal people do and have done since bottles have existed (well, except for the cap bit; that shit is rather new), you can effortlessly spin it to whatever angle you want, with perfect control all the way.
Of course you can always hold it with two hands, which might be what you meant, but that’s a rather stupid waste of a free hand when most bottles are designed to be holdable with one single hand.
entropicdrift@lemmy.sdf.org 4 days ago
If you can’t hold a small plastic bottle by the neck, you’ve got bigger problems than tethered caps.