Science lessons applied for safety, in your car. Do you drink water?

August 17, 2017

Still image from Idaho Power's short video on water bottles causing fires in cars.

Still image from Idaho Power’s short video on water bottles causing fires in cars.

Idaho Power sends along this video, teaching how to avoid starting your car on fire on a sunny day.

Can you use this video in your classroom?

It demonstrates science, how lenses work, how light works. Science classes should be able to use it.

The video offers safety instruction, stuff elementary kids should know to improve the safety of their daily lives. Their parents should know about it, too. Instruction for the kids, and a safety flyer for kids to take home.  A short piece Boy Scouts can use for Safety merit badge instruction. Surely Girl Scouts can use the safety instruction for a badge.

What other uses can you find?

Basic science provides critical basis for living, for parenting, and for teaching and learning. Anyone opposed to science instruction should rethink the harms that ever result from ignorance, or even forgetfulness.


Warning signs in Texas

September 7, 2014

On several Texas rivers one may rent a large tire inner tube, to float down the river on a good day.

Safety instructions sometimes are minimal, but effective.

Safety rules at a river float rental company, location unknown. Photo via Cathy Ordeman

Safety rules at a river float rental company, location unknown. Photo via Cathy Ordemann

Tip of the old scrub brush to Cathy Ordemann.

Birth of hydrogen phobia: May 6, 1937, the Hindenberg crash

May 6, 2014

May 6, 2014, is the 77th anniversary of the Hindenberg tragedy. Docking at its station in New Jersey, after crossing the Atlantic, a spark ignited the aluminum-based paint on the airship, and the entire craft exploded into flame.

35 people died on the airship, and one on the ground — did you know a few survived? The Associated Press interviewed a man who was 8-years old that day, and a passenger on the airship.

Werner Doehner, an 8-year-old passenger aboard the Hindenburg, saw chairs fall across the dining room door his father had walked through moments before the disaster. He would never see his father alive again.

“Just instantly, the whole place was on fire,” said Doehner, of Parachute, Colo., who is the last surviving passenger. “My mother threw me out the window. She threw my brother out. Then she threw me, but I hit something and bounced back. She caught me and threw me the second time out. My sister was just too heavy for her. My mother jumped out and fractured her pelvis. Regardless of that, she managed to walk.”

Hindenberg on fire

Hindenberg on fire, May 6, 1937.

The disaster erroneously condemned hydrogen in the public’s mind. Despite widespread use of hydrogen gas for cooking and some transportation during World War II (including in the U.S.), use of hydrogen as a fuel beyond that has always faced the hurdle of the “Hindenberg Syndrome,” the fear that the gas would explode.

Is the fear justified?  Fact is that gasoline is much more volatile, more explosive, and generally more dangerous, than hydrogen.  We move, and use, millions of gallons of gasoline in the U.S. every day, worldwide very hour, bound by laws enforcing strict liability, in relative safety.  Most people don’t think about the explosive power of the few gallons of gasoline stored under the rear seat of their car, where the children ride.

What other technologies do we fear irrationally?  What technologies do we irrationally fail to fear so much as we should?

This is mostly an encore post.

How kids get to school, New Delhi edition

March 19, 2014

From Twitter:

From Twitter: “Another e.g. pic to show that school transport in Asia needs attention on health & safety aspects”

Do you think the students have wi-fi to finish their homework on the way to school?

(This is not necessarily representative of all Indian school buses.)

One wonders at the stories behind such “buses” and their use.  It might make an interesting geography assignment, to find out how students get to school in other nations.  What is the most exotic, bizarre, dangerous or luxurious ride?


A sign to take seriously

September 7, 2013

jordanfhiggins  More good advice. #NASASocial

jordanfhiggins More good advice. #NASASocial

Sometimes signs just don’t command the attention they should.

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