Theories of the universe
By Dave Duffy
Issue #66 • November/December, 2000
In a relatively short span of time, mankind has travelled from profound ignorance of our planet and the world in which we live to a rather detailed picture...
How big is the solar system?
By John Silveira
Issue #60 • November/December, 1999
In artists' renderings of the solar system we often see the sun represented by a small sphere with the planets drawn fairly close by. In truth, drawings like...
Gee-Whiz: Ice Ages, Past and Future
By O. E. MacDougal
January/February 2016, Backwoods Home
Most people don’t know that we’re currently in an ice age and have been for the last 2.58 million years. It’s called the Quaternary Ice Age. Again and...
Gee-Whiz: From Paper to Canning
By John Silveira (aka O.E. MacDougal)
May/June 2017 Backwoods Home
The greatest inventions in history are the ones we now take for granted. Fire and the wheel-axle combination are among them. If we weren’t taught in...
The many benefits of garlic
By Joe Knight
Issue #113 • September/October, 2008
Garlic, used throughout the world for the taste it adds to foods, is also well known for its medicinal benefits. Known as Allium sativum in the botanical world,...
The world is coming to an end… and this time, I’m not kidding
By John Silveira
Issue #114 • November/December, 2008
If you haven't already heard, on September 10, 2008, the Large Hadron Collider (LHC), located on the border of France and Switzerland, was turned on for a test...
Gee-Whiz: Coffee
By O.E. MacDougal
May/June 2018, Backwoods Home
Every second of every day about 26,000 cups of coffee are drunk around the world. That’s about 2¼ billion cups a day. But it’s still not the most widely...
Can we make a Tyrannosaurus rex from a chicken?
By John Silveira
Issue #169 • January/February, 2018
Do you have chickens, ducks, turkeys, or geese in your yard? They’re not “just birds” because scientists now realize birds are dinosaurs. Real dinosaurs! For 150 million years,...
The MTHFR mutation and why it may matter to you
By John Silveira
Issue #170 • March/April, 2018
This is an article with both anecdotal evidence and science. It is about me, anxiety and depression, a gene mutation, and a 17-cent-a-day “treatment” that works (for me).
All...
The coming ice age
By John Silveira
Issue #86 • March/April, 2004
As little as 30 years ago the talk wasn't about global warming, it was about an imminent ice age. Is an ice age likely? Even possible? Consider this:...
The ‘risks’ with Swine Flu
By John Silveira
Issue #118 • July/August, 2009
Do we have anything to worry about the reemergence of Swine Flu Novel Influenza A (H1N1) this fall? The short answer is: Probably not. There are...
Gee-Whiz: Insects
By O. E. MacDougal
November/December 2015, Backwoods Home
Some 400 million years ago, in the Devonian Period, insects evolved from crustaceans. Since that time, they have been one of the most successful life forms on the...
The gee-whiz! page — Cats: Why they rule our world
By O. E. MacDougal
Issue #170 • March/April, 2018
House cats
A recent Gallup poll showed that cat ownership is pretty much evenly distributed between men and women, and that roughly 34 percent of all U.S. homes...
Testing Soil
By Tom Kovach
Issue #119 • September/October, 2009
Testing the soil content of a garden is very important and is quite easy to do. Soil tests are needed because some plants prefer slightly acidic soil, while...
Science and truth. Are they related?
By John Silveira
Issue #46 • July/August, 1997
It was an argument about science. Dave and I were on one side, Dave's friends Tom and Bill, though curiously nonallied, were on the other. I say nonallied...
A doomsday scenario to sleep on
By John Silveira
Issue #109 • January/February, 2008
I once wrote a science fiction novel that I never tried to sell. Titled The Perfect Defense, its first chapter appeared in the premier issue of BHM in...
