Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Wednesday, January 20, 2016

Pluto gets kicked again

Attention Pluto Lovers-

If you loved Pluto as the 9th planet in our solar system, today just isn't your day. But, a new planet, currently named Planet 9, has been discovered. 

Planet 9 has an elliptical orbit that takes 10000 Earth years to complete. Because it is an elliptical orbit, Planet 9 has a minor axis of 20,000,000 miles and a major axis of 80,000,000 miles!

How was it discovered? Because of MATH! Scientists and astronomers now need to collect observational data to confirm the existence!

http://m.space.com/31670-planet-nine-solar-system-discovery.html

Take a look at the article and share this major discovery with your students!

The next exciting step is the naming process. Dr. Mike Brown @plutokiller is one of the discoverers of Planet 9. The Mashable article has some interesting potential names. http://mashable.com/2016/01/20/planet-nine-name/#7VouDiHdVsqQ

Personally, I like the idea of Minerva or Apollo for the name. Both fit the naming convention already present. Minerva would be for wisdom and Apollo would be for logic.

Monday, March 11, 2013

The need for STEAM

I will now give fair warning...I am going to get on a soapbox for this post.

http://farm1.staticflickr.com/115/316350341_00239c8fc2_z.jpg?zz=1
 
I was reading through my Zite feed and found this post on how at the heart of every Pixar animation is a computation engine designed with the rules of geometry and physics. This just reinforces that idea to me that schools need to focus on more than STEM (Science, Technology, Engineering, Mathematics) career pathways and redefine them as STEAM (add Art) career pathways.

The POTUS has put a lot of money and policy (Race to the Top) behind the creation of these new STEM career pathways to create a new supply of trained and educated workers for these career fields. Primarily, the major need for these fields is due to the retirement of workers after the last push for these career fields from the Sputnik scare of 1957. With the idea that the Russians were able to create and successfully orbit and artificial satellite during the escalation of the Cold War, Americans had to ensure that we would be second to no one. This resulted in a huge push for more scientists, mathematicians, and engineers, and President Kennedy's decree that we would reach the moon by the end of the decade (1960s).

With it now being 2013, all of those engineers, scientists, and mathematicians have had a very successful 30+ years in the field and are now retiring in droves. As we push forward, we have to recognize that the world has radically changed since 1957.

I was very fortunate to experience a very well rounded education when I was in high school. I had the chance to explore visual as well as performance art in addition to my studies of science, math, and the humanities. I joke with people that I was much smarter when I was in high school because I was able to discuss topics of biology, chemistry, physics, history, literature, and others. Once I went to college, I chose a major and focused on the study of biology and my working knowledge of the other subjects went by the wayside. But, again, I was fortunate to still have the chance to continue a personal pursuit of vocal performance with the Varsity Men's Glee Club and an a cappella group, No Strings Attached.

It is this well rounded education that has enriched my life and my work in education. But a big part of that is that the pursuit of biology, education, and vocal performance were my passions. Educators and policy makers are pushing these STEM career pathways into 6th and 7th grade. As students move through these pathways year to year, it will become progressively difficult to alter pathways the later they go in the schooling. Should we be asking students to select a career pathway in 6th grade?

And why this push? Our test scores are low, compared to other nations. So, how do we fix this? Test more and narrow focus. What happens when a student's passions are not found within STEM? What happens when students grow and develop and their passions change?

If we are able to evolve STEM into STEAM, that would at least provide more students options and open more pathways to students who already like the STEM careers.

Case in point, a friend of mine had quite a bit of talent in the sciences, but she also had a lot of talent in drawing, which is where her passions were (as she was graduating college). Luckily enough, she had good educators around her to guide her to her career in medical illustration. Just as the Pixar article suggested, within the arts, STEM is already present, but not necessarily a conscious part of the career choice process.

Additionally, recent conversations I have had with various colleagues and friends have mentioned how their ability to express themselves, in both written and verbal formats, have allowed them to advance and collect more grant dollars than any of their subject specific trainings. Despite their lack of formal testing under NCLB, the arts need to be emphasized and encouraged.

Education needs to move full STEAM ahead.

Wednesday, December 12, 2012

Tis the season of giving

December has a lot of holidays that emphasize the family, protection, renewal, etc. When I looked for a list of winter festivals, I found way more that I was looking for: http://en.wikipedia.org/wiki/List_of_winter_festivals#December

(After looking for this list, I realized that I had a certain bias toward the seasons of the Northern Hemisphere, so for my Aussie and Kiwi readers, I apologize and hope you are enjoying your summer!)

But, I digress. It can be said in the US (and most probably elsewhere) that this is the season of giving. While there has been a mad scramble to accumulate tangible objects with a specific monetary value (since the Thanksgiving night), I would like to turn my attention to something with much more meaning...the gift of time.

When I was in a school building and I could serve as the administrator in charge, I would always volunteer to work on the day of December 24th so someone else could be with their family and prepare for the holiday. When teachers have expressed a need, I have served as an emergency sub so they could take care of family emergencies or even get on a road a little early to be with family.

I am sure that we can think of personal examples of this all over the place. Maybe you have been the giver, maybe the recipient. The question I had was how has this translated into the classroom? How do we instill this idea of the larger community in our classroom? Social Studies classes seem to be a natural alignment with concepts of civic responsibility, but how can we do this in a science class?

Here is how: We can share with our students volunteering opportunities at local informal places of learning...museums! Here are some links you can share:
Even The Art Institute of Chicago

Not only will these activities look great on a student's resume or college application, it will provide them with a chance to give back to the community and reinforce the concepts being taught in school.

I realize that these are Chicago-specific, but go to a museum website for your area and search "Volunteer". You will find TONS of opportunities that will reinvigorate you and even generate more professional connections making you the constant learner.

Tis the season...

Monday, December 10, 2012

Pluto strikes again

If you do not watch The Big Bang Theory, I highly recommend it. Any time 3 physicists with PhDs and an engineer, with only a Master's Degree from MIT, get together, hilarity must ensue...

On a re-run of an episode, they had a great physics joke about one of the simple machines. The set up for this punchline is that Sheldon's (green shirt) friend who is a girl wants him to meet her mother. Leonard (red shirt with purple hoodie and brown coat) has explained that there is no way to avoid the girl changing from a friend who is a girl to a girlfriend. Sheldon doesn't understand so Leonard puts it into physics terms:


It got me thinking about the basic machines that have been studied in classical history. From Wikipedia, there are 6 simple machines listed:
  • Lever
  • Wheel and axle
  • Pulley
  • Inclined plane
  • Wedge
  • Screw
Based on the definition provided, the simple machines are the building blocks that can be combined into more complex arrangements that with the aid of the combined specific movements will provide a mechanical advantage allowing more work to be performed with the same amount of energy put into the system without the machine.

When I look at the six simple machines listed, I think that the list can be condensed to three. The pulley is really a wheel and axle with a groove to provide a channel for a rope or belt. The lever is an inclined plane placed on a fulcrum (which in a simple model is a wedge). And, as seen described in the video clip above, a screw is an incline plane wrapped helically around an axis. The pulley, lever, and screw are all combinations of simple machines, this making them more complex. (We have not included a bicycle or automobile in the list because they are complex combinations, although they are the first of their respective kinds of transportation. Even as my mind wandered to the idea of the airplane and the wing, the wing is merely a modified wedge.) Thus, in my humble opinion, there are three simple machines: inclined plane, wedge, and wheel and axle.

But, in the modern age, I think that the list of simple machines (3 or 6) is incomplete. When we examine what I am using to write this blog post, we come to the computer. As a coincidence of today, as we consider what components the computer can be simplified to, I would be remiss if I did not acknowledge today's Google Doodle:


http://www.google.com/doodles/ada-lovelaces-197th-birthday

 
The doodle of the day depicts Ada Lovelace and her contributions to Charles Babbage's computation machine. So, what simple machine can we take away from the computer? Would it be the monitor, keyboard, mouse, hard drive? Simplify it all down and we get to the microprocessor as the driving engine of the computer.

But even the microprocessor had predecessors: the microchip, the transistor, and the vacuum tube. Do any of these make the list? I would argue that they should not because each can be simplified down even more to the most base components. I would contend that the addition to the list of simple machines should be the circuit.

If you clicked on the link above for circuit, you would see that there are many machinations of the circuit and there certainly is an advantage when they are put to work (may not specifically be a mechanical advantage, but I do not think it would be a hard argument to make to fit the above definition).

So here we are, a historical list of 6 machines that can be argued into 4. Just as in the case of Pluto, what used to be historically accepted as fact should be modified in the modern age.

Do you agree?