Part of the What Time? series, an exploration in science fiction.
The Twins Paradox is less of a paradox and more of a time puzzle originally stated by Einstein.
Puzzling Twins
Alice and Angela are identical twins born seconds apart on a shiny afternoon. Growing up, they do everything together including dressing alike. Their mother insists they wear [...]
Twins Paradox
Newtonian Time
Part of the What Time? series, an exploration in science fiction.
Let us generalize a moment.
The Background
In the 17th century industrialization sprouted leading to 19th century railroad domination linking commerce across the map. Scheduling trains increased the need for time zones. Higher precision clocks allowed ships improved navigation across the sea. Clocks became important including today [...]
Science Definition
These are foundational definitions for understanding science and science fiction stated here for the non-scientist. The most important concept here is that science theories are not facts.
Science
Science tries to explain the world around us in a way that we can understand. This applies primarily to phenomenon we observe indirectly like earthquakes and micro-organisms. We feel [...]
How-To: Make a 3D Photo
Use Magenta/Green 3D glasses to view the chess photograph or Red/Cyan 3D glasses to view the bike photograph. Click on an image for a larger view. 3D quality depends on your monitor’s color settings. The chess photo ghosts a little on my Macbook screen, but appears perfect on an external LCD.
Items list
1. Digital camera
2. Tripod [...]
Volcano: Then and Now
In “Remember the Volcano,” I share the story of my first Mt. St. Helens blast area visit. Here are two of the photos compared to recent photos of the same locations. Notice the growth after 26 years.
The above photos look eastward at Mt. Adams where the 2009 photo is from a lower vantage point. In [...]
Remember the Volcano
Lush greenery, fir and pine floated on the breeze. The paved road, needles speckling the edge, snaked through the forest. Sunlight filtered through the canopy between openings, bright glimpses of the mountain range. Signposts reminded drivers of the CB channel where the truck operators called out their position by mile post marker. A truck rumbled [...]
It’s Saturn
Dad set the telescope on the driveway. Unfolding, the rickety tripod clanged into position. It wobbled on its feet, slender tube drooping. Dad scanned the sky, looking over the first few stars awakening in the fading light. He knew the major constellations and could recognize several planets, but not much more. This was his first [...]



