586
Brag Forum / Re: 12 DAY OF CHRISTMAS
« on: November 29, 2012, 09:05:42 am »
I have the pattern and at some point want to cut it too. Nice cutting and thanks for letting us see your work.
News: Had a couple issues with the forum today. 1/19/2017. I believe I have them corrected now. Let me know if you have any trouble. Thanks.
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587
Introduce Yourself. / Re: Hello from the UK
« on: November 28, 2012, 10:25:40 pm »
Hey Kev Welcome and glad you found us.
Billy in virginia USA
Billy in virginia USA
588
The Coffee Shop / Re: Memo from Santa
« on: November 28, 2012, 10:18:03 pm »
I left a little message about that Santa thing for Keefie. Perfectly logical explanation
589
The Coffee Shop / Re: Santa is a myth - Proof at last!!!! Sorry Kids
« on: November 28, 2012, 10:10:01 pm »
The distance Santa has to travel can be estimated from the following. First, while the surface area of Earth is about 10to the 14th square meters, only about 30 percent of that is land mass, or about 0.3 x 10 14th square meters. Second, we'll assume, for simplicity's sake, that the 800 million homes are equally distributed on this land mass. Dividing 0.3 x 10 14th by 800 million gives 4 x 10 4th square meters occupied by every household (about six football fields); the square root of that is the distance between households, about 200 meters. Multiply this by the 800 million households to get the distance Santa must travel on Christmas Eve to deliver all the children's gifts: 160 million kilometers, farther than the distance from here to the sun.
Thanks to the rotation of the earth, Santa has more time than children might initially think. Standing on the International Date Line, moving from east to west and crossing different time zones, Santa has not just 10 hours to deliver his presents (from 8 p.m., when children go to bed, until 6 a.m., when they wake up), but an extra 24 hours- 34 hours in all.
Even so, Santa's task is daunting.
Now, some have guessed that Santa accomplishes his task by traveling at a speed close to that of light-let's say, 99.999999 percent of the speed of light. By traveling that fast, in fact, Santa can deliver all his presents in just 500 seconds or so, with plenty of time left over (the remainder of the 34 hours) to polish off the cookies the children have left him on their kitchen tables.
There are certain consequences, however, of Santa's traveling at this frantic pace. For example:
First, children may not be able to see Santa racing across the dark night sky, but they may be able to see a trail of light caused by Cerenkov radiation, a phenomenon created when charged objects travel faster than the speed of light (which they can do in transparent media, but not in a vacuum). Since the basic component of our atmosphere is nitrogen, light is slowed to 99.97 percent of its usual speed of 300,000 kilometers per second. Santa travels faster than this and undoubtedly is charged; as a consequence, then, he will emit visible photons. (Unfortunately, that light will be obscured by the light caused by the friction created when Santa rushes through the atmosphere. Also, Santa might roast in all this heat, but we'll presume that Santa's sleigh, like space capsules, has special protective shielding.)
Second, children will notice that as Rudolph, Santa's lead reindeer, is rushing toward their homes, his nose is no longer red. The color depends on just how fast Rudolph is moving, turning yellow, then green, then blue, then violet, and finally turning invisible in the ultraviolet range as he accelerates to higher and higher speeds. This change in color is a well-known phenomenon, called the Doppler shift, which astronomers take advantage of to figure out the speeds with which the stars and galaxies in our expanding universe are moving with respect to us; from that information, the distances to these celestial objects can be deduced. Using the accompanying table, children can determine how fast Rudolph is traveling by noting the color of his nose.
One worry Santa has is whether, with his irremediable girth, he'll be able to squeeze into all those chimneys. Traveling at nearly the speed of light makes the problem worse, because Santa gains mass (his kinetic energy adds to his mass, as Einstein's famous E = mc2 attests). Children believe that Santa will easily fit in the chimney, because from their frame of reference, even though Santa is heavier, he has contracted. From Santa's frame of reference, though, the chimney is narrower than Santa is.
But children need not fear. The theory of relativity assures us that Santa will fit (see figure 4), and their packages will be delivered on time.
Children might also wonder why Santa never seems to age. From year to year, he retains his cherub face and merry laugh, his long white beard and his round belly that jiggles like a bowlfull of jelly. The fact is that for objects traveling at close to the speed of light, time slows down. So, the more packages Santa delivers, the more he'll travel, and the more he'll remain the same, carrying on the Christmas tradition for generations of children to come.
NOTE TABLES AND CHARTS NOT INCLUDED FOR THIS DISCUSSION
Thanks to the rotation of the earth, Santa has more time than children might initially think. Standing on the International Date Line, moving from east to west and crossing different time zones, Santa has not just 10 hours to deliver his presents (from 8 p.m., when children go to bed, until 6 a.m., when they wake up), but an extra 24 hours- 34 hours in all.
Even so, Santa's task is daunting.
Now, some have guessed that Santa accomplishes his task by traveling at a speed close to that of light-let's say, 99.999999 percent of the speed of light. By traveling that fast, in fact, Santa can deliver all his presents in just 500 seconds or so, with plenty of time left over (the remainder of the 34 hours) to polish off the cookies the children have left him on their kitchen tables.
There are certain consequences, however, of Santa's traveling at this frantic pace. For example:
First, children may not be able to see Santa racing across the dark night sky, but they may be able to see a trail of light caused by Cerenkov radiation, a phenomenon created when charged objects travel faster than the speed of light (which they can do in transparent media, but not in a vacuum). Since the basic component of our atmosphere is nitrogen, light is slowed to 99.97 percent of its usual speed of 300,000 kilometers per second. Santa travels faster than this and undoubtedly is charged; as a consequence, then, he will emit visible photons. (Unfortunately, that light will be obscured by the light caused by the friction created when Santa rushes through the atmosphere. Also, Santa might roast in all this heat, but we'll presume that Santa's sleigh, like space capsules, has special protective shielding.)
Second, children will notice that as Rudolph, Santa's lead reindeer, is rushing toward their homes, his nose is no longer red. The color depends on just how fast Rudolph is moving, turning yellow, then green, then blue, then violet, and finally turning invisible in the ultraviolet range as he accelerates to higher and higher speeds. This change in color is a well-known phenomenon, called the Doppler shift, which astronomers take advantage of to figure out the speeds with which the stars and galaxies in our expanding universe are moving with respect to us; from that information, the distances to these celestial objects can be deduced. Using the accompanying table, children can determine how fast Rudolph is traveling by noting the color of his nose.
One worry Santa has is whether, with his irremediable girth, he'll be able to squeeze into all those chimneys. Traveling at nearly the speed of light makes the problem worse, because Santa gains mass (his kinetic energy adds to his mass, as Einstein's famous E = mc2 attests). Children believe that Santa will easily fit in the chimney, because from their frame of reference, even though Santa is heavier, he has contracted. From Santa's frame of reference, though, the chimney is narrower than Santa is.
But children need not fear. The theory of relativity assures us that Santa will fit (see figure 4), and their packages will be delivered on time.
Children might also wonder why Santa never seems to age. From year to year, he retains his cherub face and merry laugh, his long white beard and his round belly that jiggles like a bowlfull of jelly. The fact is that for objects traveling at close to the speed of light, time slows down. So, the more packages Santa delivers, the more he'll travel, and the more he'll remain the same, carrying on the Christmas tradition for generations of children to come.
NOTE TABLES AND CHARTS NOT INCLUDED FOR THIS DISCUSSION
590
The Coffee Shop / Re: Impossibilities in this world
« on: November 28, 2012, 04:34:00 pm »
You cant stick your tounge out without separating you lips either!
591
General Scroll Saw Talk / Re: Last Show of 2012!
« on: November 28, 2012, 10:30:24 am »
My last show will be Sunday. we arrive at noon, set up and will be away by 4:30. I stopped making things for the show last week and started doing other things. One thing about scrolling is that if you get tired of making one thing there are plenty of others. Like most of you, I do not sell to make a living ( or even a profit) but when I sell an item I at least get to cut another one!!!!! Sometimes folks ask - Don't you wish you were finished with that. I usually answer No more that you wish you golf game was over at 12 holes or the fish would just stop biting. I enjoy it that much?!
592
The Coffee Shop / Re: Large Anaconda Found
« on: November 28, 2012, 09:13:33 am »
I did not like snakes before this and I like them even less now!
593
General Scroll Saw Talk / Re: Not happy
« on: November 28, 2012, 09:06:33 am »
Marg I like the way you turned a negative into a positive. Can't work on this one Start something else.
594
General Scroll Saw Talk / Re: Magnifying lamp
« on: November 27, 2012, 10:48:33 pm »
Ahhhh King thanks a heap for putting that vision n my head 
595
The Coffee Shop / Re: Ghost in the Elevator
« on: November 27, 2012, 10:45:38 pm »
Hope they never pull that on me. I would not be pretty at all.
596
General Scroll Saw Talk / Re: Magnifying lamp
« on: November 27, 2012, 06:39:20 pm »
Thanks Russ I will have my third one soon.
597
Brag Forum / Re: Christmas Wordart by Mahendra
« on: November 27, 2012, 06:32:26 pm »
The colors fit the theme perfectly Thanks for letting us see it.
598
Brag Forum / Re: Survivor Torch
« on: November 27, 2012, 06:29:36 pm »
Nice one Tommy thanks for letting us have a look.
599
General Scroll Saw Talk / Re: Magnifying lamp
« on: November 27, 2012, 12:55:07 pm »
Russ That light looks very similar to one I saw somewhere that sells for well over $100. Does it have a glass lens?
I have 2 of them and one smaller LED magnifier I got at the woodworking Show last spring. I do not care for the LED light as it is not bright enough for me. I only have one good eye and it ain't perfect. The fluorescent does a much better job for me.
I have 2 of them and one smaller LED magnifier I got at the woodworking Show last spring. I do not care for the LED light as it is not bright enough for me. I only have one good eye and it ain't perfect. The fluorescent does a much better job for me.
600
General Scroll Saw Talk / Re: Baltic Birch Plywood Help
« on: November 27, 2012, 08:36:17 am »
Tony and I have both seen the voids so I wonder if there are som manufacturers out there that are starting to get sloppy?
