Shifting over the years

I still remember the lesson in Geography in high school. It was about the tectonic shift. I don’t recall any video or other proof that this was real. We just took his word for it, I guess. We probably had a textbook too! All I can remember was thinking that some day we might end up in Lake Huron or something!

But things do change. A few years ago, the annual CSTA conference was i Omaha, Nebraska. I flew into Eppley Airfield. I had been told that it was a quick 10 minute Uber ride to the hotel. It actually was quite quick. But …

As I’m sitting there, I’m taking it all in. I was surprised when I ended up seeing a “Welcome to Iowa” sign. Was my driver taking this foreigner on a long drive?

It actually was a pretty quick drive and there I was at the hotel. I guess somewhere along the line, we’d passed back into Nebraska and I had missed it. Once I caught up with my Nebraska and Iowa friends, I told them about my observation. It wasn’t news to them; apparently, the Missouri River over the years has moved!

All that came back as I read this story this morning…

Interactive map lets you track the location of your hometown as the Earth changes over 750 million years

It’s a wonderful read and explains what’s happening quite nicely. Of course, I had to check it out. The presentation was spectacular. If you’ve used Google Earth, you’ll find spinning and navigation quite easy.

I turned off the cloud layer and brightened it a bit in the settings and then turned the clock back 750 million years.

I guess the plates have indeed moved!

Like most things this interesting, I was down yet another map worm hole. Ever the educator, I couldn’t help but think how much more interesting this concept would have been if it had been available when I was in high school.

It doesn’t stop there, although if it did it could have saved me some time.

The application is tied to a number of databases.

This truly is a fabulous resource.

Make sure that you bookmark it.

4 thoughts on “Shifting over the years

  1. Good morning Doug!

    Accepted/confirmed knowledge evolves slowly over time, and the model of plate tectonicsIs one of the things that has become accepted/confirmed during our lifetimes. I remember first hearing about the idea during a grade 9 geography class. I’m pretty sure we didn’t have any current geography textbooks, other than the atlases we spent so much time in. I know that over the subsequent years I ran into the notion again, and then met J. Tuzo Wilson in the 80s when I was a student U of T and working at the Science Center. Tuzo Wilson was the Director General there, but still had an office at the McLennan Physics building where I encountered him once or twice.

    By the time I was teaching in the classroom and the curriculum and textbooks had been updated, the notion/model had turned into accepted and scientifically proven fact, such that it was laid out in detail for kids to learn.

    Things like the Internet, Google and a plethora of information technologies have come along in the subsequent years, but there have been very few advances in scientific knowledge that have such a similarly profound impact on our understanding of our world. I know they have posited/discovered/confirmed a few new quarks, and They finished mapping the human genome in 2003, but are there really that many “new” scientific facts/understandings that have come about over our adult lifetimes? It would be interesting to research and develop a list.

    Like

  2. Pingback: OTR Links 09/02/2020 – doug — off the record

  3. Pingback: My Week Ending 2020-09-06 – doug — off the record

  4. In Iceland you can drive from North America to Europe. The two plates meet there, although there is a gap between the two plates. I am not sure what is holding things up in the gap. I should have asked. In any case the gap changes over time. Very cool to see.

    Like

Please share your thoughts here

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.