Comments for Peter V. Mørch's site http://www.morch.com Just another WordPress site Sun, 29 Jul 2012 15:24:58 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Classical Mechanics: Why does Power depend on frame of reference? by frank burns http://www.morch.com/2011/02/15/power-depends-on-frame-of-reference/#comment-926 frank burns Sun, 29 Jul 2012 15:24:58 +0000 http://www.morch.com/?p=59#comment-926 Pieter, I think your analysis is spot on. But I don't think that classical mechanics was constructed to make sense power and energy across shifting points of reference. Yes, power varies with increasing speed, so the speed of the other frame of reference would be added (OR SUBTRACTED) to arrive at power, and energy too. An Eveready battery powering a toy bunny walking within another frame of reference (in the same direction as it) would really be filled with a lot of energy. But we quickly learn: don't compare energies across frames of reference. Pieter,
I think your analysis is spot on. But I don’t think that classical mechanics was constructed to make sense power and energy across shifting points of reference. Yes, power varies with increasing speed, so the speed of the other frame of reference would be added (OR SUBTRACTED) to arrive at power, and energy too. An Eveready battery powering a toy bunny walking within another frame of reference (in the same direction as it) would really be filled with a lot of energy. But we quickly learn: don’t compare energies across frames of reference.

]]> Comment on Oh, god I hate PDF for on-screen viewing by John Bailo http://www.morch.com/2011/10/13/oh-god-i-hate-pdf-for-on-screen-viewing/#comment-919 John Bailo Sat, 30 Jun 2012 18:06:36 +0000 http://www.morch.com/?p=273#comment-919 I use all different size screens with a browser including my 32" LCD. The beauty of HTML and what few people understand is that if done right, it auto forms for the browser size. With PDF if i size the text for very large the lines don't wrap...I have to H-scroll back and forth to read!! I use all different size screens with a browser including my 32″ LCD.

The beauty of HTML and what few people understand is that if done right, it auto forms for the browser size.

With PDF if i size the text for very large the lines don’t wrap…I have to H-scroll back and forth to read!!

]]> Comment on Towards a 1984-like society: Lets go some other way! by georgina howard http://www.morch.com/2011/12/23/towards-a-1984-like-society-lets-go-some-otherway/#comment-723 georgina howard Thu, 09 Feb 2012 10:51:54 +0000 http://www.morch.com/?p=308#comment-723 Well written and you make a very good point .. brought a lot of things home to me Well written and you make a very good point .. brought a lot of things home to me

]]> Comment on Oh, god I hate PDF for on-screen viewing by Peter http://www.morch.com/2011/10/13/oh-god-i-hate-pdf-for-on-screen-viewing/#comment-706 Peter Fri, 03 Feb 2012 14:02:34 +0000 http://www.morch.com/?p=273#comment-706 I must admit, that I find .doc to be equaly bad for on-screen viewing. Especially since I don't have MS Office natively on Linux. I must admit, that I find .doc to be equaly bad for on-screen viewing. Especially since I don’t have MS Office natively on Linux.

]]> Comment on Oh, god I hate PDF for on-screen viewing by mavado http://www.morch.com/2011/10/13/oh-god-i-hate-pdf-for-on-screen-viewing/#comment-588 mavado Tue, 13 Dec 2011 10:09:27 +0000 http://www.morch.com/?p=273#comment-588 http://www.doc2pdf.net/ http://www.doc2pdf.net/

]]> Comment on Forwarding SNMP ports over SSH using socat by Jose M. Abad http://www.morch.com/2011/07/05/forwarding-snmp-ports-over-ssh-using-socat/#comment-80 Jose M. Abad Thu, 14 Jul 2011 01:19:16 +0000 http://www.morch.com/?p=85#comment-80 Cool ! I use it to grab MRTG data from my ISP router through SNMP tunnel. I did it effortlessly y straight forward. Thanks a lot for your post. Cool !
I use it to grab MRTG data from my ISP router through SNMP tunnel. I did it effortlessly y straight forward.
Thanks a lot for your post.

]]> Comment on Classical Mechanics: Why does Power depend on frame of reference? by Peter http://www.morch.com/2011/02/15/power-depends-on-frame-of-reference/#comment-55 Peter Sun, 13 Mar 2011 18:02:52 +0000 http://www.morch.com/?p=59#comment-55 Sure, that will be true as we approach the speed of light. But as I said in my title, it is about "Classical Mechanics" - disregarding relativity. Even when we operate at speeds where we can disregard relativity there are problems in my little example that I can't fathom. Any relativity problems only come in addition. Sure, that will be true as we approach the speed of light. But as I said in my title, it is about “Classical Mechanics” – disregarding relativity.

Even when we operate at speeds where we can disregard relativity there are problems in my little example that I can’t fathom. Any relativity problems only come in addition.

]]> Comment on Classical Mechanics: Why does Power depend on frame of reference? by MarkoN http://www.morch.com/2011/02/15/power-depends-on-frame-of-reference/#comment-47 MarkoN Thu, 10 Mar 2011 16:47:06 +0000 http://www.morch.com/?p=59#comment-47 > so our acceleration is constant, and so velocity grows linearly. Velocity doesn't grow lineary, because the weight of the rocket will increase according to Einsteins law of general relativity. Ofcourse this change is not noticable at low speeds, but when you are reaching speed of light, the weight of the rocket will grow infinitely. Accelaration will slow and now matter how much power you use, you are not able to reach speed of the light. > so our acceleration is constant, and so velocity grows linearly.

Velocity doesn’t grow lineary, because the weight of the rocket will increase
according to Einsteins law of general relativity. Ofcourse this change is not
noticable at low speeds, but when you are reaching speed of light, the
weight of the rocket will grow infinitely. Accelaration will slow and now matter
how much power you use, you are not able to reach speed of the light.

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