JaDodger t1_ivfqpmv wrote on November 7, 2022 at 5:22 PM

Reply to comment by Tarashank in Is my power shower positioned too low on the wall? by sudzikle

Yeah that makes sense. I’ve never had an issue with straws before I just remember seeing a physics video about it (probably veritsaium) and was just curious

UncleBones t1_ivg5b4c wrote on November 7, 2022 at 6:54 PM

The issue isn’t the length of the straw, that friction is negligible (unless the straw was extremely thin). The issue with a longer straw is the difference in elevation at the point of suction compared to the elevation of the liquid. If you have a silly straw you need much less (negative) pressure than if that same straw was straightened out.