Recent content by hutchphd

I am pleased that the interaction was useful for you. It is the most one can expect! Good luck.

That is my first encounter with this term. I will endeavor to use it daily.

There are a host of atomic behaviors that do not comport with classical mechanics. This was seen to be a problem at the time, and most of them were illuminated by quantum mechanics, although for some the solution seemed as daunting as the problem.

If this really bothers you, may I suggest that you take up a more idiosyncratic pursuit. Perhaps painting or sculpture. Each work product has value because of its uniqueness: it will be redolent with individuality not easilly matched by artificial art (unless perhaps you somehow emulate Bob...

Different type of fallout from the Manhatten project. Lots of human mental capital in one location. "What do you mean the timing must be microseconds?" Just another day at the office for those folks.......

This is very counterintuitive ! Has no one noticed this previously ? What if the drop falls onto a liquid surface ? Gobsmacked, I am.

. Cerainly an excellent choice. Mike, Congrats. I reaelly hope you enjoy the task..

This reminds of the photographic work of the Lumiere brothers called autochrome I think. They made a custom shadowmask for each color. Diufficult but impressive work.

You need to pull equally on any "scale" to keep it in place while in use. and in general it is very useful to understand how a spring works. I don't think the two are equally necessary here. This post headed for the weeds faster than I would have deemed possible. I was just saying K. I...

Perhaps but who cares. For the purposes of this problem a scale is a black box with a hook and a calibrated readout of the static force on that hook. It could be filled with microprocessors and elves and it wouyld not be relevant to the question. Have humams here (and everywhere!) lost...

An+d this makes things less complicated somehow? The issue of extended bodies and forces where things are "overdetermined" gives most students difficulty. But more rigor and crisper definition is the solution.

Static means static. This is an idealization but well defined and not a "fuzzy" force of some weird character. So what is an "active force" (other than an unfortunate complication?). I am mystified by much of this, but not without reason. ADDENDUM: the "many stacked scale" problem is in...

Here is the formal solution: All is static Draw a free body diagram for the hook. There are two forces on the hook, the Tension in the string and the spring force ( as indicated on the scale.....that's why it is called a scale) Draw a free body diagram for the connected mass. There are two...

I have to ask pointedly what could be more elegant and direct than " take a big old wad of glue and splooge one of the pulleys to the mount" ? Enough said IMHO

You do not understand the unique genius of the scientific method, and therefore you do not understand anything much about physics. The fact that every fact we learn may be wrong is the entire point and power of hard science. It redounds to social as well as technological realms. Your...