Recent content by MrSmit

Alright. Thank you for the explanation Chet. This information makes my interpretation a little bit more difficult, but you can't argue with nature I guess haha!

Yes, but isn't it important that gas is compressable and water practically isn't? My feeling tells me that if the internal pressure stays the same and an external pressure is present, the wall is 'squished' between pressures. Thank you so much for your patience, I hope I don't come across as...

Ok, so those tensions would be $$σ1=\frac{(150+130)}{(150-130)}\frac{80}{2}$$ $$σ3=\frac{(150+130)}{(150-130)}\frac{54}{2}$$ Situation 1 = 560 mmHg Situation 3 = 364 mmHg The length of the tubing is 50 cm. So, the stress on the vessel wall indeed becomes lower? Thats so counterintuitive...

Hello Chet, Thank you for this approach. So, the hydrostatic pressure is density of the volume * gravity * height plus atmospheric pressure. So in my case that would be 1012 kg/m3 * 9.81m/s2 * 0.35m + 101325 Pa = 10480 Pa. In mmHg that would be a pressure of 786 mmHg. As an answer to your...

Hello, I'm a PhD student in medical biology and am doing experiments with bloodvessels. I've modified an existing technique and getting unexpected results (ofcourse..). I think it is due to a pressure difference but my knowledge of physics is inadequate to be sure. Ill give a short explanation...