Not An All-Terrain Vehicle: The Building of Small Robots

http://www.classroomantics.com/lego-robotics/

So I have never been the girl who wanted to build a robot. But let’s admit, that little robot up there looks pretty cool.

Except:

Ours didn’t exactly look like that. In fact, it resembled more of a tricycle…I’m a twenty four year old woman building pre-training wheels robots.

After hunting down the various teeny tiny pieces required to build this Lego NXT two motor robot, we successfully put it together, with only a few small adjustments. After making the adjustments, we plugged the car into the computer and used the LabView software to give the car instructions.

It worked! We made it lurch, and snake, and swerve. It did wildly unsuccessful circles until we programmed each motor just so, which turned out to be telling both motors to move forward with one going slightly faster than the other.

You guys, it was like a weird little pet.

http://www.inkity.com/catalog/product/2/9936/Lizard-On-A-Leash.html

I kind of liked it, especially the part where we could program the robot and then unplug it from the computer and let it roam around.

Our final task with the little rascal was to figure out exactly how far the little jaunts were taking it.

To do this, we used the following measurements of the robots wheels which were as follows: diameter- .17m, the amount of time it moved which was equal to one second, and the speed at which it moved which was 50 mph. After entering this information into the LabView program (the software that helped us program the car) the program told us that the car had moved a total of 28.7 centimeters. To calculate human error, we measured the distance with a rule and came up with 30 centimeters. When calculated, the human error turned out to be 4.4%. (Which is apparently not too shabby.)

All told, I think I’d still rather have a real pet but at least the robot never makes a mess on the rug.

 

 

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The Disappearing Act of Fukushima Daiichi

So the assignment is to present the Fukushima Daiichi incident in a light that reflects what we personally think the audience should know about it. At first I thought, hey, easy, this nuclear disaster was a huge deal. There should be information everywhere!

Oh was I wrong.

It seems as though the world at large has totally forgotten about the fact that nuclear meltdown was a very real threat for Japan less than a year ago.

Where are the recent articles? Where are the updates? What about all the people displaced by this disaster?

Where did it all go?

I’ve decided to recap the events as they unfolded just so we all remember just how dire this situation is.

Explosion at nuclear plant in Japan – YouTube.

This report for Al Jazeera was done as the reactor was failing, which happened in March of 2001, 10 months ago. Note all the scary scrolling facts while the reporter discusses the reactor’s status.

But let’s back up a minute here. There were other things going on before the nuclear situation eclipsed everything.

Remember the earthquake?

The massive earthquake was followed by a tsunami. During this Al Jazeera broadcast, reporter Azhar Sukri makes it clear just how much devastation Japan was already facing:

New pictures are emerging of the moment the tsunami struck northeastern Japan. – YouTube.

Despite the Japanese government’s attempt to maintain calm about the crisis, the nuclear threat level was raised from 5 to 7 almost a month later (pushing the incident to the same level as the 1986 Chernobyl disaster). We all heard the broadcasts. We knew that people had been evacuated from their homes and businesses. We knew that there might be radiation in the milk in California. We followed the story until we knew one thing for sure: it wasn’t going to affect us.

Classy.

As I Googled “fukushima daiichi status” I came up with many of the same links that I am sure my classmates will have found. One in particular caught my eye. It was a published report released by the IAEA (the International Atomic Energy Agency) which was also the most recent piece of literature I could find. The PDF report was published on November 10, 2011. It detailed the current scientific statistics on the ongoing repairs of the nuclear plant and also the food samples that had tested positive for higher than acceptable levels of radiation separated by region. At the end of the report I noticed a literal bold statement:

“The IAEA will continue to issues regular status reports to the public on the current status of the Fukushima Daiichi Nuclear Power Plant.”

It’s almost the end of January!

Why weren’t there more reports available to the public on the website? I even clicked on the video that was supposed to detail how to treat possibly contaminated water…and got some serious Japanese error messages.

BUT WAIT, THERE’S MORE.

Guess where I found the updates.

No really, guess.

THE FACEBOOK PAGE OF THE IAEA.

I kid you not. That was it. That was where they were posting the most recent news about the Fukushima Daiichi nuclear power plant. You can “like” their updates.

The part about all of this that worries me is the following:

OH WOW, nuclear reactors! Though the world seems to think that the tragedy in Japan has subsided, there wasn’t quite enough uproar about the fact that this could happen to any of the active locations at any time.

I hear your protests. The odds of an enormous earthquake hitting Massachusetts and then having that be followed by an enraged tsunami do seem astronomically small. But what if something does happen? How do people prepare for an event like nuclear leaks?

I did some more googling. The Red Cross provides a brochure that includes this little gem:

“How can I protect myself in case of a nuclear power plant accident?

The three basic ways to reduce your exposure are through:
• Time. Decrease the amount of time you spend near the source of radiation.
• Distance. Increase your distance from a radiation source.
• Shielding. Increase the shielding between you and the radiation source. Shielding is anything that creates a barrier between people and the radiation source. Depending on the type of radiation, the shielding can range from something as thin as a plate of window glass or as thick as several feet of concrete. Being inside a building or a vehicle can provide shielding from some kinds of radiation.” (source: www.redcross.org/images/pdfs/code/nuclear_power_plant.pdf)

The brochure is pretty vague. However, there was one section of information that I found oddly specific. Under the heading labeled “Facts and Fiction” there was a single note.

“Fiction: People exposed to radiation “glow” with radioactivity.
Facts: Radioactive material can burn the human body, but exposed people do not become radioactive themselves. Radiation never causes a person to “glow.” ”

That was the only thing they wanted to clear up?

Confusing.

Folks, in the event of being exposed to radiation, please do not turn off your lights and check to see if you light up the room.

Here’s the big worry, the one that no one wants to discuss: if there were nuclear meltdown, there isn’t a way to ensure that everyone is safe. Though less frequently referenced, there was a partial meltdown incident that took place here on the East Coast almost 33 years ago. Voice of America did a report on the incident here:

Three Mile Island, 32 Years Later – YouTube.

Evacuations took place during the Three Mile Island incident, as residents were urged to leave the area. Even though complete nuclear meltdown did not occur, and the containment methods worked, it was clear that something even so small as a malfunctioning part could have serious consequences.

One Part.

With three major incidents of the nuclear reactor type on the world’s record, it’s time for some feverish work into alternate forms of power.

 

 

 

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