Recent content by DaveE

1) Let's not confuse UFOs with extraterrestrial visitors. I personally saw a UFO, just the other day. It might have been an A320, or a 737. I'm not sure. 2) I wouldn't trust a lawyer, community activist, or politician to do the analysis, as much as I might like them. 3) He said that there...

Also: - Blinking or looking away. - Turning their head away. - Bending their body (spine). - Soft muscle tension in their face (eyes, cheeks and forehead). - Mouth neutral, neither closed or showing teeth. - Relaxed, normal breathing. Not panting or holding breath. Sniffing is OK (unavoidable...

If you're interested in this, this is a really good book to check out. Plus it's short with a lot of pictures: https://www.dogwise.com/on-talking-terms-with-dogs-calming-signals-2nd-edition/?srsltid=AfmBOop-yPxrfrzMZDeeUfwG1qoQzqF7caWGyMDCaYlg-kfeYE9DBS_A I think every dog owner should read it...

This discussion reminded me of this experiment. Could it be that humans are as smart as dogs? Look they can track things with their nose!

It will be hard to select more expertise in human relations, since they are already experts. The pinnacle of domestication, they see more about our behavior than we know. Dogs know how to communicate with humans for the important stuff, but do the humans care to listen? Many obnoxious dog...

After about 1 minute with google search: https://literature.rockwellautomation.com/idc/groups/literature/documents/pp/safety-pp006_-en-p.pdf There are others, you should try it too.

One of the big problems I have as an instructor of sport detection dogs is getting the humans to recognize that dogs neither think like humans or perceive the world as humans do. Now, anytime people talk about animal intelligence, I'll pretty much check out. It always comes from the frame of...

The thing about feature creep is that each new idea is usually a good one. But there is real value in simplicity.

As you said, RPI has a good reputation in the engineering community (EE anyway). It's a good school, IMO. Your grad school admissions are a ways off, there's a good chance you'll change your path before then. In any case, your grades, test scores, recommendations, and such will probably be...

Yes 100% agree. RTV isn't great in wet locations or sun, it usually shrinks with age, and doesn't bond well to most things. It's really like a gasket material more than a glue. If you have a good marine chandlery nearby, I'd ask them. If they don't sell sailboat hardware, they don't count. Some...

There are many other factors involved in selecting the switching frequency. I guess this would be a good description of the maximum speed. However, much also depends on the commentating diode (or Mosfet for synchronous rectification). At turn on the FET must support the current ramp up to the...

This is the change in the inductor current; how much it increases. Read up a bit about continuous vs. discontinuous conduction mode. There's a ton of information on the web. Plus everyone here will assume your switching frequency is fast compared to the circuit dynamics, which I assume you...

You might think of this diagram as an ODE. There's nothing wrong with saying ##x(t) +\int{x(t)}\, dt ...## in that context.

It would help us if you said which part(s) of this machine you are interested in designing. The mechanical part, just the software, motor control, etc. If you just want to do SW, I would look into buying a used plotter from eBay. Some have analog inputs, others have digital. Back in my day HP...

Maybe a flange with a soft metal gasket, like Indium? IDK, maybe it would melt (157oC). Maybe you would want it to melt, like solder? The simple mechanics of squeezing a seal between two flat plates seems more reliable than screw threads to me. Also, I've seen them a lot in pressure vessels...