Sundayyyyy ~

Today is Sunday! and that means physics blog, ANDROOH >:D BAHAHAHA.  Blogs are fun when they’re not actually graded, because then you don’t have to write 150 words about physics… and I’m not the only one who does blogs over break.  Other people *such as lysmandor and yoshio* also have sophistication :P  :)

I’ve been watching random things this weekend, like 5 centimeters per second and Glee.  In 5 cm/s, the idea is that the flowers from the cherry blossom tree fall at a rate of 5 cm/s, the same way that people drift apart or something like that.  There is probably a time when the cherry blossoms do fall at 5 cm/s, but they start with initial velocity of 0 cm/s and accelerate towards the ground.  Drag slows the speed of the cherry blossoms, so they move more slowly.

I haven’t seen any epic YouTube videos lately… although I still like watching the John Williams is the Man video and the video about “our John” XP  I know, I’m easily amused XD

The guy in Owl City actually has a decent voice, but why must “Fireflies” have such painful rhymes…?

“I can find
out no rhyme to ‘lady’ but ‘baby,’ an innocent
rhyme; for ‘scorn,’ ‘horn,’ a hard rhyme; for,
‘school,’ ‘fool,’ a babbling rhyme; very ominous
endings: no, I was not born under a rhyming planet,
nor I cannot woo in festival terms.”

- Much Ado About Nothing (V.ii.the.beginning)

Now I’m babbling, too.  Yay!

Oh and today I went running.  It was pretty fun, running in the morning.  Except I had a dream last night where I got stung by a bee many many times… and it wasn’t a bumblebee.  It was just a regular bee.  So this morning, I was running down the street back home when I saw a huge bumblebee -___- Nothing happened, though :)

Lenses

I have really, really big eyes.  Okay, just one big eye… like the cyclops in The Odyssey >0)

Because the object, my eye, is between the lens and one of its foci, the image produced is upright and larger than the object.

When I place the lens against the mirror, this weird thing happens… not really sure how it works.  Light from all over reflects off the mirror and produces a virtual image behind the mirror.  This virtual image serves as the virtual object for the lens.  The lens creates a real image that is inverted and smaller than the virtual object, since the virtual object is far behind the focus of the lens.  If I were to slowly move the lens toward myself, you would be able to see more than one image.

This lens is actually part of a television that my dad took apart — umm — tried to fix.  It’s pretty heavy and thick, around an inch at the middle.  He said it’s used to focus light onto one point, or a pixel, or something.

Convex mirrors

A few days ago in orchestra, I saw a mechanical metronome on the piano.  It was really tiny and cute XD unlike most other mechanical metronomes, which look something like this:

The one in the orchestra room was more like this one, except red:

Anyway… since I couldn’t find much to write about this week… I’ll revisit the pendulum from last week.

The surfaces of each of the small metal spheres acts like convex mirrors.  Since the pendulum is placed in the corner of the room, light from afar hits the spheres.  If you zoom in on the spheres, you can see that almost the entire room is reflected in the sphere.  The image in a convex mirror is always virtual and smaller than the object.  The further away from the mirror the object is, the smaller its image.

This is the sphere at the top of the pendulum.  It’s not very clear, but at the top, you can see the clock; in the center, me in my ridiculously large OSB shirt, holding a camera; and below, the two bears that were in the first picture.

EDIT: I almost forgot!!! D:

Projectile motion~!

SNUFFLES <3