Recent content by Rolliet

Many years ago I was acutely allergic to bee stings. I was prescribed a "Epi" pen and used it several times. Eventually however, I noticed I had developed a tolerance to bee stings, and no longer carry my epi pen. Rather, I take a couple of Benytril and go on with my day. Does it make medical...

when a photon is viewed as a particle does it exhibit mass and gravity? Likewise, when electrons are viewed as a wave does it behave like a photon (i.e.: causing an electron to jump an energy level) ?

Is quantum physics closer to the truth than classical physics, or is it just a different way of looking at the same problem? For example, the rules of baseball explain the behavior of baseball players better than the rules of football, and vice versa. The rules of these two sports are not...

I'm curious if alcoholic beverages can be used to provide hydration. I've read that alcohol can induce the body to lose more water than is gained (For example beer is 95% water). However, if you have no potable water can alcoholic beverage substitute for water ? Does it depend on the percentage...

Does anyone have experience using "Volt-Sticks" ? What is its theory of operation? Is there another tool/device that does the same thing? Thanks

It is cells that die, which lead to the death of the organism. Obviously, in complex organisms, which cells die, and how many determine the fate of the organism. The topic of death is also a philosophical one. Consider "grafting", where trees have their limbs removed and grafted onto other...

In regards to the original question I'd think that the "Hydraulic Analogy" is helpful in understand the relationships between volts/current/resistance.

"Hay", as I am referring to it, is typically grasses harvested before going to seed, which is then left to dry (for several days) and then feed to horses and the like.

My question is what are the physical changes (apart from losing water) that occur as fresh grass becomes hay.

If you have an animal, such as a Horse or rabbit which feeds on Hay, what (if any) nutritional difference is there between "Hay" and "fresh grass". Obviously, Hay is grass that has been sun dried to make it more storable. Are there chemical or protein changes that occur to grass that has been...

motor

I'm trying to get my mind around counter-emf. Is there a good analogy for counter EMF in either hydrology or mechanical examples ? I've read the textbook descriptions. Likewise, I wonder if there are analogies for the phenomenon of Hysteresis.

Yes, a problem when a card gets old. I'd think it happens to everyone.

When my credit card magnetic strip is worn it won't scan at the grocery check out. The clerk then uses a plastic bag over the card and runs it through the scanner. I'm baffled why this should work, but it does every time. Any explanations ? Thanks

Thanks. I never thought it'd add energy. I have many questions about capactance.