Posted on Wednesday, March 4, 2015

Balloon Inquiry: What Will Happen And Why?

This was originally posted at the High Hopes Project web site.

Note the 4 party balloons that all started out the same size before they were inflated, on their way to 30,500 meters (100,000 feet ) from a balloon flight last year. On our upcoming flight we will inflate 4 of the same size balloons – the first balloon will be inflated to about 1/4 of its capacity (like the yellow balloon in the photo), the second balloon to about 1/2 of its capacity (see the green balloon above), the third to about 3/4 its capacity (Note the orange balloon), and the fourth balloon will be inflated close to full (Note the red balloon above). What will happen to them during the flight? What are the characteristics of the atmosphere that may effect them and what, if any, will that effect be? Explain your conclusion.

When we launch the “High Hopes” high altitude weather balloon we will include this experiment. We will have a camera recording what happens to the balloons and share those images with you after the flight in late April or early May 2015. So do your research about our atmosphere, discuss with your collaborators, do some heavy thinking, then write what you think will happen. You could even leave your written thoughts here as a comment if you’d like.

Learning is messy!

Posted on Tuesday, March 3, 2015

Now You Can Submit High Hopes For The World With Twitter!

NOTE: This post was originally posted on the High Hopes Project Blog:

When we launch our balloons to 100,000 feet (30,000+ meters) this spring, the world’s high hopes will go with them. Now we’ve made it even easier to submit a “High Hope” using Twitter. Just “Tweet” your “High Hope” for the world, include the hashtag #hhpstem – and we’ll get it and include it in a payload that will take it to near space and then release it to spread around the world. So your “High Hope” will really go high!

We suggest however that having your students write their “High Hopes” for their school, community and the world might need more than 140 characters so then, as we shared in our last post:

“When we first designed the “High Hopes Project” years ago, we went about making sure it stressed not just the powerful content writing experiences about the science and engineering, but the creative writing we knew it would motivate students to engage in. We’ll share more of those along the way, but having students brainstorm, discuss, and share what their “high hopes” are for their school, community and the world turned out to be gold. Most students (maybe adults too) just don’t think about what can and could be.

Originally we had our students write those three “hopes” … school, community … world. We posted general steps, but we have no strict rules about how you submit your “Hopes.” They can be just be one “hope” per student … a “class” hope that the class develops … it is up to you. “Hopes” could also be written as a poem or short story. Once done, you submit them here.”

Either way is fine, you decide. But you just might want to send your own “High Hope” to us quickly through Twitter … and now you can! Remember the hashtag #HHPSTEM – you can even send more than one!

Learning is messy!

Posted on Monday, February 16, 2015

Next Design Challenges for Students in Our High Hopes Project

I’ll probably repost this here in full later, but we just posted an update over on our High Hopes Project blog. Exciting stuff going on, read about it here: Next Design Challenges For Students.

Posted on Monday, December 1, 2014

High Hopes Project 1st Design Meeting

I posted this over on our “High Hopes Project” blog and decided it fit well here too:

We refer to The High Hopes Project as a “model” STEM project. One aspect of that modeling is that we’ve designed it to include as many ways to participate as possible. To do so we have set up (so far) a project web site, this blog, a Twitter account, a Flickr account, a YouTube Channel, a Wiki and a Gmail account so we have access to tools like Google Forms for archiving and analyzing data.

In addition, any class or person can participate in the experiments we will send up by researching and theorizing based on what should happen, and then analyzing the data we gather and share about the atmosphere including temperature and pressure and in sending up the world’s “High Hopes” – including yours (more explanation about those aspects will be shared along the way – we don’t launch balloons until April and May) .

However another characteristic of this project is we chose 3 local schools to participate in certain engineering designs for the project to act as surrogates for all of us (an elementary, middle and high school). We contemplated opening up the major engineering design portion of this project to the world, but realized quickly that receiving design ideas from potentially tens if not hundreds of classes from around the world would be beyond our time constraints and abilities to judge and implement.

Doug Taylor who co-designed this project looks on as a student explains the mock-up of the High Hopes payload and release mechanism the class is engineering and building.

The first one of the engineering challenges the students in Mr. Walsh’s physics class at Sparks High School are tackling is how to release the “High Hopes” the world submits so they can be spread around the world – more than likely they will be printed on small strips of paper – the paper we use breaks down in the environment in a matter of weeks BTW, so our High Hopes will become one with the Earth. One batch of the High Hopes will be designed to helicopter or glide in the air (to be designed by the elementary students) and have to be released at a lower altitude, but the bulk of the High Hopes will be released as high as possible (around 100,000 feet or 33,000 meters). So that requires 2 payloads.

The students informed us a week ago that they had done some initial designing and had some mock-ups to show us, but more importantly had questions about requirements and conditions to deal with. We set up a time to meet with them and included Andy Smith who is a mechanical engineering graduate student at the University of Nevada, Reno. Andy is close to receiving his doctorate degree in engineering and has launched over 50 balloons himself, as well as designing payloads and the communications devices required to track them so they can be recovered. He has agreed to consult with students throughout the project.

The students showed us 2 designs – one basically a pyramid shape they envision being a bit more aerodynamic and stable, and another shaped more like a rectangular prism. The rectangle design also had a rudimentary release mechanism built in. They had chosen styrofoam sheets, as the material … oh and the ever ubiquitous duct-tape.

One question they had was about payload size. They had no idea just how many “High Hopes” they had to transport, but they assumed about a ream of paper worth (500 sheets). In fact they had placed a ream of paper inside their initial designs and dropped them from their school building as an initial test and both survived intact. We explained we really had no firm idea just how many we might receive over the months before we launch, but that their test seemed like a good start.

Andy answered their questions about release mechanisms and how to release the High Hopes at the right moment. They discussed the possibility of using arduinos they could build and program, perhaps based on altitude readings. Andy also made them aware of some of the other design issues they would have to overcome including temperature, high and very low humidity, and high winds … and that some glues and other materials don’t do well under certain conditions.