See what I did with the title there? I'm so clever.
So, echos. An echo happens when you say something or make a noise and the sound waves from your mouth bounce off a hard surface and rebound back to you, which is why you hear what you said again and again and again. This is why echoes are common in caves, because you're surrounded by hard surfaces.
We know that when a wave reaches the end of its medium, it undergoes a certain process depending on how it's medium ends. Transmission/refrac
So I figured I'd write a blog about my experience in building my first ever catapult! Though it was definitely intimidating at first, I found the project actually turned out to be a lot of fun to build and launch.
My group settled on a trebuchet design, and after working out the ideal angles, sizes and overall plan, we got to building. We built for 2 days, just about 3-4 hours a day. I won't bore you with the cutting and sizing and drilling of wood, because I think we all know that's not exac
I recently stumbled upon a question that definitely made me think twice. And then twice more.
If you carry firewood to the top of a hill, and then burn it there, what happens to the firewood's gravitational potential energy? Does it disappear?
Crazy, I know. The equation for gravitational potential energy is mgh, or the mass times the acceleration due to gravity times the height. If you burn the log up into ashes with substantially less mass, what happens to the rest of the gravitational
I am a Physics C student of undisclosed gender. I enjoy chocolate, long walks on the beach, reading, sports, music, sleeping , understanding calc homework (hahaha jokes) and harmonizing to the radio. I think I'm good at working in groups and I'm a pretty even-tempered, easy going person. I can motivate myself to work hard, even if it is at the last minute. Other strengths include tripping and awkwardly pretending it didn't happen, predicting the exact moment when Tim is about to make a really c
So you know those toys where there was a wooden ball attached to a string attached to a wooden handle thing? And you had to swing the ball up and catch it in a ball-shaped indentation on the top of the wooden handle thing? No? Well, maybe a picture will help...
Anyways, it took me awhile to find this picture, as apparently Google has no idea what you're talking about when you search "swing ball on string into indentation" or similar phrases. Finally, I found it's real name - "Cup and ball"...
