Here’s the Make Magazine video on Ohm’s Law that we watched in class… it’s a fantastic video covering how voltage, current and resistance are related (watch again!)…

Finally, we’ll pick up with Tesla and Einstein tomorrow. Here’s a great starter vid on Tesla you can watch tonight:

I’ve finished grading listening to your awesome song remixes from our Sound Unit.

I have to say, I’m blown away by some of these… amazing work!

Here are a few fun highlights:

- Eleanor has MG play Diary old-school manual style.

- Jesseca brutalizes Meet The Elements and turns it into a dark goth-punk anthem of gloom with a roar that will give you nightmares for weeks then changes it into a smurf sounding pop song.

- Ansley’s take on Barbie Girl is… um … interesting.

- Zelle slows down Sleepy Head so it’s even more annoying

- E.O. has a great sounding remix

- Nora makes ‘Love Like Woe’ into ‘Woe Are My Ears!’

Great work, folks!

To wrap up, we’ll be working on a fun activity…

1) Think of your favorite song.
2) Find 5 points of frequencies from the song.
3) Find 5 wavelengths from your song.
4) Remix a segment of your song to change 5 points of frequencies from the song.
5) While you’re remixing, change 5 wavelengths of your song.

Post the finished remix or clip on your blog.

You can present all of this either analog (with paper, posters etc) or digitally (video, podcast on a blog post etc).

Enjoy!

To really understand sound, we have to understand the human experience of interacting with sound. So, we start with the ear. Tomorrow we’ll finish our labeling and do some fun and quick labs:

Sound Test Study Guide

Here are a few examples:

Tacoma Bride Fail

Can a singer break a glass with just their voice?

Tomorrow we’ll continue our studies of wave energy and move towards the subject of sound. Should be fun!

Here are our main points from today…

The Four Properties of a Wave

Frequency = Hz
Amplitude = amount of energy/displacement in a wave
Wavelength = distance from one point to the corresponding point on a wave.
Speed = wavelength x Hz

Your homework for tonight is to study those four properties.

Here’s a good site to find out more info on frequency, amplitude, wavelength and speed.

Tomorrow, we explore how waves interact!

Here is a link to the presentation I had for you in class today:

http://public.iwork.com/document/?a=p103636129&d=Light.key

Make sure to review slides 18 and 19!

Scientists supersize quantum mechanics : Nature News: “A team of scientists has succeeded in putting an object large enough to be visible to the naked eye into a mixed quantum state of moving and not moving.

Andrew Cleland at the University of California, Santa Barbara, and his team cooled a tiny metal paddle until it reached its quantum mechanical ‘ground state’ — the lowest-energy state permitted by quantum mechanics.”

I’ll explain tomorrow.

Then we’ll discuss.

After that you’ll grow up, become physicists and figure out how to do this on even larger scales so humans can transfer energy and information faster than the speed of light.

Woah.

In the meantime, go watch this lecture:

Fantastic.

History of Electromagnetism Part 2 from Sam Harrelson on Vimeo.

Keep reviewing your notes!