Recent content by kpachla

Right, but that's not the point. The AP board found it significant to accept an integral for work. I already mentioned that my students can do it that way, but I want to make sure that when I'm explaining the ways to do it, I provide them with both ways in case someone doesn't think about...

Hi All - 2nd year in my teaching career and already I'm teaching an AP C: Mechanics course! As I'm creating my midterm for my students, I'm looking at AP Free Response questions to give them practice for the real thing. As we're only 8 units in, my selections are limited to Work, Energy...

Just because you're skeptical doesn't mean it can't exist ;-). I wouldn't put it past someone with a true photographic memory.

I'm not sure what you mean. I know people who can look at something once and recall everything about it. If that's not what I'm calling photographic memory then I'm not sure what you're talking about. I believe that has been verified in the sense I'm speaking of.

Some people can. Photographic memory is just this. It's our brains remember the stimulation from the photons bouncing off the page.

It's true. Many hypnotists can make you recall a smell. It's stored in your brain and what we smell is just the perception. The science behind it is the sensory receptors in the nose, there is no stimulation of those but the brain can remember what that stimulation felt like. In the end...

Agreed. If we're saying it falls in the forest, then YES is the answer because sound is a traveling wave, and this traveling wave will be observed by something (air, dirt, leaves) therefore it must exist. But the deeper question is, with no observer (i.e. no dirt, air, etc. to absorb the...

Hmm, good question! Maybe a lurker that wanted to finally jump into the open? I just found PF today and thought I'd help out right away, but it's always nice to have someone retell you a method or story. I think my record for making a ringtone is the 2 minutes it took me last night to make...

New user here, thought I'd help out as my first post! It's pretty easy, you need to do the following steps: 1) Pick a song 2) Listen to the song to find out what portion of the song you want to use. Watch the time and write down the start / stop time. Try to make it under 30 seconds or...