The first railway tunnel in Canada ran from the docks on the St. Lawrence Seaway to downtown Brockville, beneath businesses above. In one case, ventilation for the tunnel ran up through the building above and was hidden as a bank of chimneys on the building’s roof. Though the narrow tunnel has long since finished serving its use, it was recently rehabbed into this fascinating community focus. LED light strips along the walls shift through rainbow colors and pass red blocks of light down the corridor to simulate the passage of a train.
Photographer in the Field
Here is my Decaseconds partner in crime during our visit to Raven’s Run in Kentucky last summer. We were on a cliff high above the Kentucky River, getting our landscape photography fix.
Empty Campus in the Summer
Though school may be out “forever” when summer arrives, there’s a stillness that overtakes the campus of which I am not particularly fond. At the start of this spring semester, campus is bustling. Is it ironic that campus is “alive” when frozen solid, but “dead” when it looks like this.
Laurel Falls, Revisited
In St. Lawrence’s Raman spectroscopy and microscopy lab, the most potent laser illumination source comes from a neodymium-doped yttrium aluminum garnet. This is a pretty ubiquitous laser source, but I happen to like it because it also demonstrates the value of nonlinear optics: though this laser is emitting light at 1064 nanometers (in the infrared), a suitable doubling crystal can combine two of those 1064 photons together to make a shiny new 532 nm photon.