Archive for July 2011

Just Signed Up For Classes

On your marks, get set, go:

DMI 49 Intro To Radiologic Technology 3.0
HLTH 14 Adv First Aid & Basic Life Sup 2.0
HIST 1 The U.S. Since 1900 3.0

Going to School for Radiation Therapy Technology

Big news.

I’ll be registering for classes on Monday to start a 4 year journey to become a Radiation Therapy Technologist. First, I’ll be taking several prerequisite classes part-time, then hopefully in March 2013 I’ll be entering a 2 year degree program at CCSF.

Inferno: A Fire Circus

If you are intrigued at what is happening in this picture, you should go to Inferno: A Fire Circus at the Crucible tonight at 7pm!

Flammarble!

I worked with Tara and Ralph in Flameworking to build this rather fun carnival attraction! They did the most work with the moving board, the case, the decorations, bells and signage. I snazzed it up with electronics: each hole triggers an effect!

It is running at The Crucible’s “Inferno: A Fire Circus” Thursday thru tonight!

Poor Design Workshop: SolarWorld

Welcome to another edition of Poor Design Workshop!

I saw this poster in the BART yesterday.

It’s kind of a nice poster… until you actually read it.

It’s time to put the sun to work
Power from the sun
400 000 000 000 000 000 000
kilowatts per second
America’s largest solar manufacturer since 1975
SolarWorld

First, “kilowatts per second” is a non sequitur here. (reference) Though granted there is often confusion about terms like this. Try to think of it this way: kilowatts is a rate, like “miles per hour”. You don’t say “He was driving at 55 miles per hour per second“… because, well, that’s stupid. Similarly, a 60 watt light bulb uses 60 watts, not 60 watts per second. With electricity, 1 Watt is equal to 1 Joule per second.It’s kind of OK for a layman to make this mistake, but not so much for America’s largest solar manufacturer since 1975.

Ok, let’s just sweep the “per second” thing under the rug and look at that big number with all the pretty zeros. “400,000,000,000,000,000,000 kilowatts” = 4.0 x 1023 watts. Let’s assume they meant to say that the earth is being hit by 4.0 x 1023 watts of energy from the sun. The trouble is, if that were true, our planet would boil off into the vast nothingness of space in minutes. In actuality, the earth catches 1.8 x 1017 watts (reference) from the sun. Their number is off by 6 orders of magnitude… a million times!!!

Ok, maybe that big number isn’t supposed to represent how much power that hits the earth, maybe they were talking about how much power the sun generates in its totality. Yeah, maybe instead of my small minded approach of erecting earth-bound solar panels, they are talking about enveloping the sun in solar panels or maybe putting it in a big bucket of water to make steam and drive a turbine. Uh huh. Ok, let’s do the numbers… Oop! Wrong again! The sun generates 3.7 x 1026 watts (reference, and), which is only 3 orders of magnitude different from their 4.0 x 1023 quote, but still waaaay off. Now our planet is cast into an eternally bleak cold night freeze. Did you see the 2007 intense science fiction thriller Sunshine? It was pretty awesome, riveting and haunting; my mind still conjures up images from the movie; it is definitely worth seeing and it is just like the dark world the SolarWorld people apparently live in.

All this goodness from “America’s largest solar manufacturer since 1975”. Nice.

Space Avalanche

Eoin Ryan is the force behind the comic strip Space Avalanche. Each one takes a while to digest and that’s part of the fun. Follow his strip!

This one is no exception. If it takes you less than 30 seconds to get it, then milk isn’t coming out your nose!

As his site requests, I bought him a well deserved beer.