6,086 reputation
826
bio website embedinc.com/olin
location Littleton, Massachusetts
age 58
visits member for 1 year, 6 months
seen 3 hours ago

Electrical engineering consultant specializing in microcontrollers and the circuitry around them. Master of engineering in EE from Rensselaer Polytechnic Institute in 1980.

We are certified Microchip design partners, and have been in the top catagory consistantly since around 2000. Various free downloads related to developing PIC firmware and other things are available at http://www.embedinc.com/pic/dload.htm.


Jul
23
comment Why does smashing a TV remote load its batteries?
Bulk material doesn't move around inside this kind of battery, but ions still migrate thru the electrolyte.
Jul
23
comment Why does smashing a TV remote load its batteries?
Yes, but quite viscous in this case. Stuff really doesn't move around much inside these kinds of batteries. The paste is usually between layers of electrodes that are rolled up. Think of a jelly roll. Shaking a jelly role isn't going to make the jelly move around much. All this is totally different in lead-acid batteries like in your car, but that's not what's inside typcal AA or AAA batteries that go into TV remotes.
Jul
23
comment Why does smashing a TV remote load its batteries?
The kind of batteries that go into TV remotes don't really have liquid inside. At best its a paste in between layers of stiffer material.
Jul
23
answered Which ball touches the ground first?
Jul
16
comment What point of application of force ensures more acceleration in a rod?
@user: With no external forces, rotation of a rigid body is always about its center of mass.
Jul
16
answered Is it more efficient to stack two Peltier modules or to set them side by side?
Jul
16
comment Gravity on flat object
@David: No, it is largely gibberish for the reasons I stated. I note that you haven't provided any reasoning to the contrary. At best it is very sloppily written.
Jul
16
comment Gravity on flat object
@Alan: OK, I'll take your word for it. I have updated my answer accordingly.
Jul
16
revised Gravity on flat object
deleted 59 characters in body
Jul
16
comment What point of application of force ensures more acceleration in a rod?
@Carl: But it does. Your view is wrong. 1 N to the right applied anywhere on the rod will cause the same accelleration of the center of mass to the right.
Jul
16
answered Gravity on flat object
Jul
16
revised What point of application of force ensures more acceleration in a rod?
added 1668 characters in body
Jul
16
comment What point of application of force ensures more acceleration in a rod?
@Carl: It makes no sense to say that some of the "translational" is in the form of any kind of momentum. We are talking about forces and accelleration here. Momentum was never mentioned. In any case "translation" specifically excludes rotational components.
Jul
16
answered What point of application of force ensures more acceleration in a rod?
Jul
9
awarded  Good Question
Jul
8
revised Electrostatics - Inserting a brass plate between two charges
added 251 characters in body
Jul
8
comment Electrostatics - Inserting a brass plate between two charges
@garyp: Brass is a pretty good conductor (has low bulk resistivity). Since there is no current flowing, it is a "perfect" conductor for this purpose, meaning the potential will be equal everywhere on its surface. Yes, the field shape will also change. I'm adding to my answer accordingly.
Jul
8
answered Electrostatics - Inserting a brass plate between two charges
Jul
7
comment Why does a string remain taut in circular motion
You are asking multiple questions on circular motion, the answers to which are largely the same. Try to understand one of them before asking others. Once you understand one, the others should make sense.
Jul
7
answered Question on circular motion — car turning on road