Day: September 26, 2019💾

🗺️ Maps 🖼️ Photos
Thematic Map: Vermont Town Population Non-Contigous Cartogram
Map: Dobbins Memorial State Forest

Nyquist-Shannon; The Backbone of Digital Sound

Most people don't understand how a digital recording is an exact reproduction of the analog waveform with no distortion.  Nyquist-Shannon says if you sample an audio signal digitally at twice the maximum bandwidth, as defined by the low-pass filter, mathematically the only signal that come out the other end, after going through another low-pass filter is the exact sine wave that went into the recorder. So, the digital sampling, actually can reproduce the exact analog sine wave -- all thanks to math. A Russian scientist invented Nyquist-Shannon in 1933 but it was rediscovered by Nyquist and Shannon in America circa 1964.

Map: Severence Hill Trail

Little Falls Hydro Plant

Between the Erie Canal and Mohawk River, on the road to Moss Island sits a small hydroelectric plant. Currently that road is closed while they are rebuilding the canal wall.

Saturday September 21, 2019 — Moss IslandMoss Island 🗺
Map: Wolf Creek Road

Clearing Out

It's 10 AM and it's clearing out quite nicely as I continue up Alander Mountain.

Sunday September 13, 2009 — Alander Mountain
Map: Merill's Hill Trail