Skip to main content

Train-ahead Transit Adventure

 Part of our unschooling plan has always been for the gang, 10 year-old Daize, 9 year-old Mota, and 6 year-old Tawnse to get themselves from place to place. The fact that we live in San Franicsco where a major metropolitan transit system exists that doubles as a school bus system has made this easier.

Still, practie makes perfect, so we entered into a new phase of our tranist-readiness program today: preparing to ride BART trains solo. The kids have gone a few cars ahead of me before with no issues, so it seemed like a good idea today for the gang to try heading out one whole train ahead of me. On top of that we found ourselves in the perfect scenario with two trains leaving to the same destination, one just a minute behind the other. And so we tried, but I gotta warn you, our results were interesting but mixed in my opinion, and yes, it was my fault.



Finding ourselves with the perfect temporal spacing, I decided we could just 'go for it' even though we were headed to a station none of us had in depth knowledge of, Civic Center. Since there are a lot of exits to that station, and the gang and I wing it with respect to exiting every time we're there, I asked them to hop on the train ahead of me, and then wait on the platform when they arrived at Civic Center. They did. I arrived literally one mintue later, on the next train, and...

They were being observed by the transit police. The police were about twenty yards from the gang, but they were there.

I got off my train, waited till I was about ten feet behind the police, and then hollered hey guys to the kids and waved. One of the officers turned around, smiled at me, and then both officers headed out to do other things.

Everything went kinda great? I mean, well, gosh, even though the gang didn't need it, good to know the police are watching apparently, everything? Also, good to know the police are apparently good with kids being on the platform.

Where'd I screw up? I think if the gang had moved purposefully under their own power to head out, they wouldn't have even turned up on anyone's screen as an event to be observed. I should have planned better.

On our way back, we went back to car behind rather than train behind in a station we knew better, and everything went remarkably well. The gang hopped out, didn't acknowledge me, and headed out of the station. No one batted an eye.

One final note. When we surfaced at Civic Center, we found ourselves in the middle of the Wednesday farmers' market there. I noticed the truck of the lettuce and tomato farmer we buy from on Saturdays. We went to say hi, but found the farmer's husband instead. But! He knew who we were since she always talks about us! I was quick to point out to the gang that they were only a short distance from someone they knew. They haven't put together all the pieces yet, but they were super-psyched about the whole thing with respect to having someone else to get to say hi to and smile at :)





Comments

Popular posts from this blog

The Valentine's Day Magnetic Monopole

There's an assymetry to the form of the two Maxwell's equations shown in picture 1.  While the divergence of the electric field is proportional to the electric charge density at a given point, the divergence of the magnetic field is equal to zero.  This is typically explained in the following way.  While we know that electrons, the fundamental electric charge carriers exist, evidence seems to indicate that magnetic monopoles, the particles that would carry magnetic 'charge', either don't exist, or, the energies required to create them are so high that they are exceedingly rare.  That doesn't stop us from looking for them though! Keeping with the theme of Fairbank[1] and his academic progeny over the semester break, today's post is about the discovery of a magnetic monopole candidate event by one of the Fairbank's graduate students, Blas Cabrera[2].  Cabrera was utilizing a loop type of magnetic monopole detector.  Its operation is in...

Cool Math Tricks: Deriving the Divergence, (Del or Nabla) into New (Cylindrical) Coordinate Systems

Now available as a Kindle ebook for 99 cents ! Get a spiffy ebook, and fund more physics The following is a pretty lengthy procedure, but converting the divergence, (nabla, del) operator between coordinate systems comes up pretty often. While there are tables for converting between common coordinate systems , there seem to be fewer explanations of the procedure for deriving the conversion, so here goes! What do we actually want? To convert the Cartesian nabla to the nabla for another coordinate system, say… cylindrical coordinates. What we’ll need: 1. The Cartesian Nabla: 2. A set of equations relating the Cartesian coordinates to cylindrical coordinates: 3. A set of equations relating the Cartesian basis vectors to the basis vectors of the new coordinate system: How to do it: Use the chain rule for differentiation to convert the derivatives with respect to the Cartesian variables to derivatives with respect to the cylindrical variables. The chain ...

More Cowbell! Record Production using Google Forms and Charts

First, the what : This article shows how to embed a new Google Form into any web page. To demonstrate ths, a chart and form that allow blog readers to control the recording levels of each instrument in Blue Oyster Cult's "(Don't Fear) The Reaper" is used. HTML code from the Google version of the form included on this page is shown and the parts that need to be modified are highlighted. Next, the why : Google recently released an e-mail form feature that allows users of Google Documents to create an e-mail a form that automatically places each user's input into an associated spreadsheet. As it turns out, with a little bit of work, the forms that are created by Google Docs can be embedded into any web page. Now, The Goods: Click on the instrument you want turned up, click the submit button and then refresh the page. Through the magic of Google Forms as soon as you click on submit and refresh this web page, the data chart will update immediately. Turn up the:...