Saturday, February 12, 2011

Introducing Ohm and Kirchhoff

I got two laws for you today, Ohm's Law and Kirchhoff's Law. These two laws have become intertwined with each other to help mankind complete circuit questions throughout time--yes it is that Earth shattering. 
It's also useful for baking cookies.
Essentially, Ohm's law demonstrates how to find the resistor, current, or charge if you have the other two variables. Kirchhoff--being the little genius he is--discovered something a little different. Are you ready for it?
BAM
Wait that wasn't its. Okay here it is:
SERIES CIRCUITS
It = I1 = I2 = I3 = In
Vt = V1 + V2 + V3 + Vn
Rt = R1 + R2 +R3 + Rn

PARALLEL CIRCUITS
It = I1+ I2 + I3 + In
Vt = V1 = V2 = V3 = Vn
1/R = 1/R1 + 1/R2 + 1/R3 + 1/Rn

Thats right, HE FORMULATED SIX FORMULAS.
Although this is not a race, if it were Kirchhoff would be totally winning. Together, our class discovered that they could be used to solve a bunch of varying circuit questions. Of course they are hard, but the fun is in solving these like sodoku-esque puzzles. Okay now go do some, have fun.

Wednesday, February 9, 2011

My Favorite Roller Coaster Design

Loops, helix, steep drop, ridiculously long lineup. These words are sentiments to roller coasters, a well-known attraction across the world. My personal favorite roller coaster HAS to be based of a coaster that i had gathered up the testosterone for, which is why I have chosen Six Flags Great Adventure's Nitro. I'll put it out there that I am not a coaster fanatic, so don't blame me for my lack of choice. I would also like to state that, "yes" Kingda Ka is at that Six Flags, and that "yes" I essentially did not have the balls to ride that thing.
 
That's right I have relatively high testosterone levels.

One of the designs that make this coaster so insanely awesome is its vertical drop down to "DOOM"--disclaimer: I may or may not be exaggerating. However, the most ridiculous part of this coaster are the highly banked horizontal loops. Those things will stick yourself to yourself.
Finally I would like to point out that Nitro had won third place in Golden Tickets' best steel coasters, so suck that anyone who says Behemoth!

-P.S I'm tall

From Batteries to Circuits

Batteries come in all shapes and sizes--small, big, energized bunnies--,but they all serve the same purpose when placed in a circuit. Its two ends, negative and positive, both must be connected to charge electrons to create a current, powering things like your toaster or microwave.
Or both.

Inside the battery a chemical reaction occurs allowing the electrons to "charge up" and essentially move through the circuit towards the positive end. If a load is placed along the circuit, the charged energy will be released, most commonly as heat or light.
Energy + Rabbits = Energized rabbits.
This process is known a energy transformation as the energy withing the battery is changed over the course of the circuit. Guess that's interesting.

Monday, February 7, 2011

Energy Balls

I'll be honest when I say i wasn't present for the experiment done on Friday, and that everything from here on will be an educated assumption on what had occurred that day. So, let's get started shall we.

Based on a "series"--Aha, get it "series"--of blogs that I have read thus far, the class was in for a treat that Friday morning. There was electricity in the air--Oh snapples, there i go again--as the class was given mysterious ping pong balls with two metal points codenamed "Energy balls". When in contact with these metal points the ball would light up and buzz. Was this some sort of magic, or was it PHYSICS.

As it turned out by using their bodies, the students were able to create a series circuit, which entails a single path on which the current flows.
 

Although we can't totally out rule magic.


The whole class was then subsequently asked to link pinkies together in an attempt to create a parallel circuit. This allowed multiple pathways toward the loads--a device that turns electrical energy into another form of energy i.e light bulb--assuring the lights would continue to glow despite being an incomplete circuit.

Like this but with flesh human bodies
In conclusion, this was a fantastic way to start the class. I would now like to end with another play-on-word:
"Don't play with electricity or you will get grounded'"