
How can electrostatic discharge affect helicopters and their …
Jul 11, 2007 · What kind of problems ESD can cause to a helicopter? Blades are usually made from a carbonfibre and they can cause electrostatic charge into a helicopter structure. Is there any method to prevent that to happen? If that charging occurs, what happens when heli is landing, will it discharge itself into a ground with a spark, or is it prevented ...
Understanding MOSFET Logic Gates: Source, Drain & Ground
Dec 5, 2006 · No. A voltage arrow points from the higher potential to the lower potential so when the arrow points towards the transistor (i.e. towards the gate) it means that the source has the higher potential meaning it's a pMOS (you know that in order for the p channel to form you got to have the higher potential on the source and the lower potential on …
How to neutralize static on styrofoam - Physics Forums
Jan 4, 2007 · I crumbled some styrofoam peanuts today, with the intent to pack the bits inside a chamber for insulation. In the process, I noticed they built up a strong static charge. It got to the point where more bits of foam were sticking to my fingers instead of …
Connect an antenna directly to oscilloscope - Physics Forums
Jul 29, 2010 · You need to be reasonably careful not to ESD zap the inner conductor on the coax imput to the spectrum analyzer. It has a little ESD protection on it typically (depending on the manufacturer), but not a lot. Treat that inner conductor on the coax input jack to the spectrum analyzer (and anything conductive connected to it) with care.
Magnetic field of an infinite sheet of current - Physics Forums
Feb 24, 2011 · An infinite sheet of current lying in the yz plane carries a surface current of linear density Js. The current is in the positive z direction, and Js represents the current per unit length measured along the y axis. Prove that the magnetic field near the sheet is …
WHat is the uncertainty in a metre rule? - Physics Forums
May 30, 2012 · WHat is the uncertainty in a metre rule?? For a single value is it 1 mm or is it 1/2mm(half the smallest division) ? And what about measuring something like a length of a stick (we need to take 2 readings, and deduct them like 15-0=15), then is the uncertainty 1+1=2mm or is it .5+.5=1mm ?
Can you rip the space time fabric? - Physics Forums
Apr 1, 2010 · Can you rip the space time fabric!? if there is a fabric of space, the four dimension you could call it, space time, is it possible to rip it or open it up, for example do black holes do that, if not what, what would happen?
Reducing the stiffness of a spring? - Physics Forums
Sep 25, 2019 · I have a spring which I am using to cushion a simple device, but it has proven to be too stiff for the purpose. Is there a way to reduce the stiffness of a spring, without making it brittle or malleable? I have access to ovens which can achieve 550°C, which can also quench in water or poly-oil...
Rubber soled slippers generating static electricity - Physics Forums
Feb 2, 2019 · Alternately, you may be able to mix some conductive <something> in with your carpet shampoo to make your carpet more conductive. I'm not sure what that would be, but there should be something out there (I can try searching for it if you want). You can also buy an inexpensive ESD meter to measure the effectiveness of your solutions.
What adhesive is suitable for gluing steel and G10 material?
Feb 24, 2024 · Hi I need to glue steel with G10 material together. But it is in moving parts environment that constantly see oil for the moving parts. My first thought was epoxy, but can it survive in oily environment in the long term. Any other suggestions? thanks Alan