The Mystery of Mount Paektu - CR4 Discussion Thread
Nov 24, 2020 · "Mount Paektu (also known as Changbai Mountain) is one of the largest volcanoes on earth and yet, for the longest time, nobody could explain where it came from or why it …
Lighting Arrester and Lightining Rod - CR4 Discussion Thread
Oct 22, 2015 · I once was on the very top of a small but very pointed mountain (Bishop's Peak, near San Luis Obispo, CA), and observed St. Elmo's fire exiting the tip of my raised finger. I …
Whitworth Thread Gauge 12G - CR4 Discussion Thread - GlobalSpec
Jun 9, 2012 · Hi All. I have a prop shaft that requires a nut, my Whitworth 55 deg Thread gauge idents it as 12G? the shaft is 3/4" across the threads and 12TPI.
The Trinity Test: July 16, 1945 - CR4 Discussion Thread
Jul 16, 2006 · The early morning hours of July 16, 1945 brought a severe thunderstorm to a part of the New Mexican desert called La Journada del Muerto, literally "The Journey of Death". …
Hex Head vs. Socket Head Screws - CR4 Discussion Thread
Nov 19, 2008 · Perhapse I should try this idea with my mountain bike. I keep breaking the retaining fastener in my seat. Usually on a trail in the middle of nowhere. I'd rather mash a …
Startability and Gradeability of Electric Vehicles
Sep 12, 2014 · You need to get a speed vs torque plot for the motor (for dc motors, the maximum torque is usually at stall). Using the gear ratio from the motor to the driving axle, you can get a …
What Size Cable Do You Suggest to Power My House?
Jul 6, 2010 · In my area single phase supply connection means 5 amp or 10 (15) amps tariff energy metering (CT is not applicable) beyound which the utility requires for a three phase …
What to do with a Radon Level of 8.3 pCi/l - CR4 Discussion Thread
Oct 9, 2015 · Hi all, I'm looking into buying a house and am in the midst of the property inspection. All is going well with the exception of the radon test that came back with an average reading of …