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For those who never saw any of the Burma Shave signs, here is a quick lesson in our history of the 1930's thru the '50's.
Last night, I went to the Thoughts for Food Benefit. I had a good time! If anybody is interested, just follow this link over to my blog and read about it there. It took me over an hour to write it up. I would take me too long copy and paste it over here. I'm a SLOW typer. Thanks!
Last night, my kids and I were sitting in the living room and I said to them, 'I never want to live in a vegetative state, dependent on some machine and fluids from a bottle. If that ever happens, just pull the plug.'
The 18th Annual Thoughts for Food Benefit is tomorrow night. Many great local bands will be playing this year. I am particularly on seeing Mean Jake and Lydon Moon. I may bring my camera and blog about this show. Hope to see you all there this year!
All you have to do is go outside after it gets dark and find the constellation of Orion. Look closely at what you see in the sky and compare it to the magnitude charts. Here is what they look like.

You simply look at the sky and compare it to the charts. Pick the one that looks closest to what you see in the sky and you have your data point. You might notice that magnitude 7 has a lot of stars and magnitude 1 has very few. In astronomy, higher numbers mean dimmer stars (it's a long story).
You will also need to know your latitude and longitude. If you have a GPS system, great (many cell phone GPS systems will tell you your latitude and longitude). If not, no big deal...all you need is your address and you can find your latitude and longitude using sites such as iTouchmap. You can then use the form to report your measurements online. You can then use the mapviewer to see your data and data from around the world.
It's pretty easy. We are looking for lots of data. Last year, there were over 15,000 reports from around the world and we would love to top that this year. You can make more than one observation. You can make them from home, the grocery store, a park, the movie theater, pretty much anywhere you go at night and it just takes a couple of minutes. I try to go for several bike rides during GLOBE at Night. I have a Garmin Forerunner GPS on my wrist and record all my data using the voice recorder on my iPod. I go out several nights and bike a different direction each time, getting a dozen or so measurements each night. I live near the edge of Tucson, so I get very different results if I bike west (into Tucson) versus east (toward Saguaro National Park). That is exactly what we would like. Lots of data in different cities...from the densely populated and brightly lit downtown to the suburbs as they give way to the countryside.
So why should you care? Well, we are losing out night skies. Many people have never seen a truly dark sky or if they have, it is a childhood memory. Light pollution is wasted energy and hence money. Light pollution has many negative effects on wildlife as well.
Still not enough for you? How about your own health? Last summer, the American Medical Association passed resolution 516, "Advocating and Support for Light Pollution Control Efforts and Glare Reduction for Both Public Safety and Energy Savings" identifying light pollution as a human health concern. You can read the entire resolution here. In part it says
"Whereas, Light trespass has been implicated in disruption of the human and animal circadian rhythm, and strongly suspected as an etiology of suppressed melatonin production, depressed immune systems, and increase in cancer rates such as breast cancers 16,17,18,19,20,21,22; and
Whereas, Light trespass disrupts nocturnal animal activity and results in diminished various animal populations’ survival and health 23; therefore be it of energy efficient designs to reduce waste of energy and production of greenhouse gasses that result from this wasted energy use (New HOD Policy); and be it further
RESOLVED, That our AMA support light pollution reduction efforts and glare reduction efforts at both the national and state levels (New HOD Policy); and be it further
RESOLVED, That our AMA support efforts to ensure all future streetlights be of a fully shielded design or similar non-glare design to improve the safety of our roadways for all, but especially vision impaired and older drivers. (New HOD Policy)"
Now of course the solution is not to turn off all lights...that would be silly. Lights are needed at night for safety and security. The solution is well designed lighting the directs light where you need it, when you need it, and in the correct amount. Too much light can cause glare and make it more difficult to see which can be just as dangerous as not enough light.
So come on out and help us get our data and full up that map!
The Gold Medal for most blogs going to...
The Silver Medal goes to Orbscorbs!!
The Bronze Medal goes to our very ownI went to Disneyland last week and saw the Aladdin show at California Adventure. First, I will say that this is easily the best show I have seen in any theme park anywhere. It tells the story well and has very good production values with a talented cast. If you are there, it is a must see.
But the astronomy in the show is not so good. I snapped a pic during the show of the scene in Jasmine's quarters (no flash photography so I apologize if it is slightly blurry from camera shake).
There is one thing wrong with this picture and another that is, well, implausible at best. Look closely at the crescent Moon (ignore for the moment the fact that the Moon is WAY too big! You should be able to cover the Moon with your pinky held out at arm's length.) You can see stars inside the crescent! Although we see only a lit crescent, the rest of the Moon is still there (sometimes near sunset or sunrise you can dimly see the rest of the Moon due to Earthshine). The Moon should block out any stars that are behind it. The only way to see stars inside the crescent is if they are closer to Earth than the Moon. There are no stars closer to Earth than the Moon...and I am pretty confident none will be discovered there in the future!
The second issue is more subtle. The Moon depicted is a waning crescent (for viewers in the northern hemisphere and Agraba is in the northern hemisphere). A waning crescent Moon won't rise until well after midnight. Based on its phase, this Moon would probably come up at 3 or 4am. Now I know Aladdin isn't the brightest bulb in the circuit, but I doubt he would wait until four in the morning to go woo Jasmine...I mean, the Genie is giving him all kinds of advice and seems like a sensible guy who would say, "Hey, Al! Don't wait until four in the morning!"
But its worse than that. The waning crescent moon would rise with its "horns" pointing upward. Here they are distinctly pointing down. They point down when the waning crescent Moon sets. In this phase, the Moon sets sometime in the middle of the afternoon. Oops! The Sun should still be up.
Now this might seem like nitpicking, but they could have just as spent five minutes with me and gotten it correct. There is nothing in the plot (or even visually) that would be been diminished by a realistic depiction of the scene. Maybe I should offer my services to Disney as an astronomy consultant!
Reprinted with permission from the Half-Astrophysicist Blog.
Talk about a crazy headline, for a minute there I thought I smoke'in the wrong stuff?
HOSPITAL CHART BLOOPERSAstronomers have been taking advantage of this for several years with the Galaxy Zoo project where people help classify galaxies and hunt for supernova. These collaborations have resulted in quite a few papers being published in peer reviewed literature. These projects have amassed over 250,000 users and 55 million galaxy classifications!
Now comes the newest member of the family, Solar Storm Watch. In Solar Storm Watch, you look for storms in data from the STEREO mission. STEREO consists of two spacecraft, one ahead of the Earth in its orbit around the Sun and one trailing the Earth, to give us 3-D views of the Sun. You get to look at data from the STEREO spacecraft to detect solar storms and measure their speeds. Solar storms can effect us on Earth with effects ranging from the pretty but harmless (northern lights) to disrupting communications and, in rare cases, causing blackouts by overloading power grids.
Before you can analyze real date and contribute to the database, you do have to complete a short web based training to learn to identify solar storms. It took me less than 15 minutes to do. Basically you are shown a series of pictures and have to identify which ones have the storms. One neat thing is that they also show you how to identify comets, particle strikes on the detector, and optical artifacts (these skills are useful for analyzing any photographs, especially those that supposedly show UFOs!)
This is a great project for teachers to get their class involved with as well. The web site keeps track of the storms you spot and other achievements.
Just be careful...it can be addictive!↓