There are probably only three of four members who understand that.
Ed started with a brass center finder, then he posted a thread with a triangle, a followed along with a comment about a triangle (assuming plastic - I don't have brass "anything"), then micky asked me what I was talking about and I don't know.
You guys took it from there.
"Making Sawdust Safely" Dusty
Sent from my Dell XPS using Firefox.
There are probably only three of four members who understand that.
Ed started with a brass center finder, then he posted a thread with a triangle, a followed along with a comment about a triangle (assuming plastic - I don't have brass "anything"), then micky asked me what I was talking about and I don't know.
You guys took it from there.
Ah.....I think I now understand the cause of the confusion.....BUT I am making an assumption. The post with the triangle was not made by Ed, as stated above, but rather by mickyd. If I re-read all of dusty's posts from #10 on substituting "mickyd" in place of "Ed", I fully understand thus my concern of possible brain damage was not warranted. If I am right, "your welcome dusty" (misdirected thank you from post 10)
p.s. I am one of the three or four members that know about the "shadow". That leaves only 1 or 2 more out there that know also.
mickyd wrote:Ah.....I think I now understand the cause of the confusion.....BUT I am making an assumption. The post with the triangle was not made by Ed, as stated above, but rather by mickyd. If I re-read all of dusty's posts from #10 on substituting "mickyd" in place of "Ed", I fully understand thus my concern of possible brain damage was not warranted. If I am right, "your welcome dusty" (misdirected thank you from post 10)
p.s. I am one of the three or four members that know about the "shadow". That leaves only 1 or 2 more out there that know also.
Dusty was referring to those few who heard the shadow the FIRST time 'aired'. They also know what the Mutual Radio Network was!(back then)
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
I listened to it all the time as a kid in the evenings as there was no tv. Along with the Lone Ranger, Amos and Andy, Jack Benny, Fibber McGee and Molly, ect, ect.
Dick
SS equipment. '89 510 (upgrade to 520), beltsander, pro planer, SS dust collector, 2 bandsaws, jointer, strip sander (production unit #1), OPR, scroll saw, Power Station, Incra TSIII Ultra Fence System& Wonder Fence plus (2) 50 year old DeWalt RASs and Incra miter express with miter gauge
dicksterp wrote:I listened to it all the time as a kid in the evenings as there was no tv. Along with the Lone Ranger, Amos and Andy, Jack Benny, Fibber McGee and Molly, ect, ect.
Listened to the 'suite for three oranges' every sunday also! . . . . . . . . . . . . . . . . . . . . . . .The FBI in peace and war
Green Dragon. . . . The Hornet . . . Sky King . . . . Roy Rogers . . . . That explorer guy????
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
dicksterp wrote:I listened to it all the time as a kid in the evenings as there was no tv. Along with the Lone Ranger, Amos and Andy, Jack Benny, Fibber McGee and Molly, ect, ect.
I have been traveling, and missed following the forum. Having taught math for 30 years, I appreciate the discussion about applications. I always looked for these kinds of things to use in class. As for the Nile survey example, they apparently used a rope or cord with 12 knots tied in it to lay out the 3-4-5 triangle (30-60-90). this allowed them to align one side of the rope Triangle to any two large stone monuments and then pull the rest of the rope triangle tight to form a 90 degree angle and go from there. I had a student whose grand father worked on high rise steel buildings and they used a similar method to square up girders in the buildings. They used a steel ruler with 3-4-5 marked on it. They would scribe 3 and 4 on two girders ( horizontal and vertical) and then see if 5 would fit as the distance between the two marks. They would move the vertical girder until it did.
I agree that teachers need to make a real effort to find these things, but I also know that I taught math for a long time and learned applications pretty much when I started working in some area like wood working. What I enjoy from this thread is that you are also able to find those applications and use the math. FYI, there is another way to find a center using only a straight edge and compass. If I can figure out how to draw it up and post it I will.
There is also a really bad joke based on Pythagorus and his theorum that I will share another day.
dlbristol wrote:I have been traveling, and missed following the forum. Having taught math for 30 years, I appreciate the discussion about applications. I always looked for these kinds of things to use in class. As for the Nile survey example, they apparently used a rope or cord with 12 knots tied in it to lay out the 3-4-5 triangle (30-60-90). this allowed them to align one side of the rope Triangle to any two large stone monuments and then pull the rest of the rope triangle tight to form a 90 degree angle and go from there. I had a student whose grand father worked on high rise steel buildings and they used a similar method to square up girders in the buildings. They used a steel ruler with 3-4-5 marked on it. They would scribe 3 and 4 on two girders ( horizontal and vertical) and then see if 5 would fit as the distance between the two marks. They would move the vertical girder until it did.
I agree that teachers need to make a real effort to find these things, but I also know that I taught math for a long time and learned applications pretty much when I started working in some area like wood working. What I enjoy from this thread is that you are also able to find those applications and use the math. FYI, there is another way to find a center using only a straight edge and compass. If I can figure out how to draw it up and post it I will.
There is also a really bad joke based on Pythagorus and his theorum that I will share another day.
Only a compass is needed. Approximate the radius on the compass, set the pivot point of the compass on the circumference and strike an arc near the center. Move the compass about 1/3 the way along the circumference, and repeat. Move the compass again and repeat. The center will be in the center(equidistant from all three) of those three scribed lines.
Limited use if your circle is the end of a dowel.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
