Welcome to the John Childs Home Page
I'ts been a joy being a physics and computer science
teacher for 35 years! During that time my students and I have had a
lot of fun. My most favourite demo has always been this flame tube.
You can't buy this demo apparatus, so you've got to build it
yourself. It's a simple afternoon project, and it gives wonderful
results, as you can see. In the near future I'll post detailied
instructions on how to build it. If you can't wait, send me an email!
Below are some interesting subjects that I'm sure you'll enjoy
Explore this fascinating topic that is
revolutionizing our understanding of the natural world!
Send for your InfoPak to get you started on this incredible journey!
The physical world we live in is an unbelievable, mind boggling, analogue living computing machine. When we get to heaven, God will show us the source code! Nothing is more exciting than learning and physics opens a magic window that allows us to understand some of this world. Here is a pot-pouri of fun and physics, ideas, and some resources that I would like to send you.
One day while reading Discover
magazine, I came across Clifford Pickover's brain boggler question.
He has created a unique mathematical puzzle whose solution requires
some fun computer programming.
Can you beat my current world record?
One of the highlights of my travelling life was the cycling trip our school organized that had a team of 14 boys and girls cross Canada by bicycle. 8,000 kms in 30 days!! Read the story, meet the people, see the country.
As a teacher of physics and computer science, I was privileged to be a member of the faculty at G.C.C. for 35 years, from 1972 to 2007. It was a wonderful experience, and I loved every minute of it. Unfortunately, the school was not able to open for the 2008 school year due to the financial pressures of declining enrollment.
You don't need expensive telescope equipment to take a fantastic photograph of these magnificent heavenly travellers! You can really do it with a home made barn-door star tracker. I built this to photograph Hale-Bopp back in '97. Give it a try... you'll be amazed, and you'll be ready for the next comet!
Here is an interesting device that you can build for your computer. It is fun to program, and opens the door to learning how to start interfacing your PC to the outside world. Great for teachers of computer science. You can order it as a kit, ready to assemble!
My physics students had a wonderful time building models of the Lunar Prospector spacecraft, and simulating the launch and control of the flight to the moon and real-time data acquisition. It was awesome! Here's the story.
The Adirondak 46rs is a hiking and climbing club that is informally organized and consists of those people that have climbed to the summits of the 46 mountains in the Adirondacks that are over 4,000' elevation. Originally about half of these mountains where trailless, and required map and compass work, and the ability to get very well lost from time to time. Take a hike, and see that...
"In wilderness is the preservation of the world." Henry David Thoreau.
Wooden puzzles are wonderful companions. They are like little creatures, each with its own personality, history and temperment. They can be quiet and docile, cooperating with your fingers as you guide them apart and together. Or, they can be raving maniacs, driving you to the edge of insanity and hopelessness. I invite you to meet my pets. If you are familiar with this type of puzzle, drop me a line!
A few years ago, I had the chance to get certified as a scuba
diver. Wow, what a fantastic world it is under water! I loved it. My
wife got certified the next year and now diving is one of our
favourite activites. We've been diving in the Carribbean at the U.S.
Virgin Islands, Bonaire, Cozumel, and the Florida Keys, as well as
lots of wreck dives near Tobermory, ON, (brrrr) and in the St.
Lawrence River. I've reached the level of PADI Divemaster, and have
posted some interesting photo-journals of dives in Cozumel, Mexico,
on the Rodales Scuba Diving website. "Click the link and Let's
Let's talk :-) (firstname.lastname@example.org)
or send me real mail at:
378 Cedar Sands Roadway
Lyndhurst, ON K0E 1N0