Skip to main content

Don't Ban Straws (At least not that way)

Wanna know what I have yet to succeed at as a parent?  Teaching kids to drink through straws.  All of the gang here—7 y.o No. One, 5 y.o. No. Two, and 3 y.o. No. Three—learned how to drink from cups immediately after they were weaned with the exception of an intermittent bottle or two.  Sure, there were spills on the table, yeah, occasionally a cup without a lid was knocked to the floor, but much like my quest for the kids to walk with me everywhere rather than resorting to a stroller, we just kept on plugging along.  Consequently, when the kids do try to use straws, straws brought to them by people who really did mean well, it’s been a disaster.  To them, straws clearly work in the same fashion as cups: grasp it with your math, tilt your head and the cup back, and, and, disaster!  For the occasional cup that has a lid perhaps there’s only a small leak.  For cups with open tops… whoops!  There went the whole drink into the lap.

As a result, I hate straws, I hate the decorative little kid’s cups that the straws are generally inserted into, and I’m not a fan of establishments that have either of them, even though, I know they’re just trying to help.

So, when I heard of the efforts springing up around the country to cut straw usage, I was fully and selfishly onboard.  If only there were no more straws, I wouldn’t have to deal with wet laps anymore!  (Admittedly not the most dire of incidents I’ve had to deal with as a parent, but still).  I dreamed of a world where I would never have to discuss with an insistent wait-person that really, we didn’t want straws, and it would really help if they never brought the topic up again.  Then I saw this:



And, well, No!  Just No!  Let’s not create yet another ‘crime’ that people can be thrown in jail or regressively fined for.  This isn’t the way.  If you’d like to light Tiki-torches and march on the home of the CEO of Straws-R-Us… well… fine.  But, please, let’s not create another nonsense crime where more of our compatriots wind up spending time fighting charges, or God forbid, spend time in jail or money buying themselves out via fines and lawyer's fees.

Comments

Popular posts from this blog

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:

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

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 concept very sim