Something is wrong in my understanding of Relativity. There is an equivalence idea running around, which says that gravity and the distortion of space time by gravity waves acts the same way on all things. That would mean that all objects and light and space experience the same distortion...
The Balance of Payments crisis will be resolved in one of two ways. Either the bill will be paid or it won't.
If it is paid there are two options.
The mostly foreigners and largely Chinese could purchase a large amount of real estate in the US. This might leave some folks unhappy, but rumour...
This question goes beyond the scope of what I was trying to cover in my article. It involves the thermodynamics of mixtures. I'm trying to decide whether to answer this in the present Comments or write an introductory Insight article on the subject. I need time to think about what I want to...
I have two questions about closed systems. Consider two closed systems, both have a chemical reaction area which releases a small amount of heat and are initially at the freezing point. One has water and no ice and the other has ice. I expect after the chemical reaction the water system will...
OK, I understand a little more and accept the last sentence. I think primarily about heat engines.
I have two questions about closed systems. Consider two closed systems, both have a chemical reaction area which releases a small amount of heat and are initially at the freezing point. One...
I thought it was a lower bound, not an upper bound and the lower bound is zero. If you go from one state to another with a perfectly reversible process then the entropy generated is zero.
Switch to Parallel Port
Thanks Bill and the rest. I have gone as far as I can with the serial port and now am turning to the parallel port. I wrote the test programs below in Microsoft QBasic on a '486 running windows 3.1.1. The last does not work. I have no idea how to fix it. The data...
I need more tools and parts
Thanks for the help.
I started a previous thread some years back:
https://www.physicsforums.com/showthread.php?p=4171433#post4171433
I don't know if I will have enough room for a feedback winding. My power might be the AC mains. Then I am afraid to handle...
Some control over the handshake lines
Thanks for the help. I have made some progress.
The following program, written in the quickbasic, supplied with Windows 3.1.1, exercises the com port handshake, by "counting up" the "transmit" lines RTS and DTR, and displaying a hex number to indicate...
I want to build this thing and I had better get the circuit right. I want to upload a schematic but I don't see a way to do it from my computer. The schematic will be wrong any way. It is not complete.
I have some bare cores. I have a terrible time putting turns on the cores.
In the...
Post has been overcome by events:
My post I hope shows my concern that I would never get this to work because I would never find the correct address. However some testing got results.
I looked at the "C" command Peek, and it has the same segment:offset form as the d command in Debug so I...
I have a continuing interest in recovering the schematic of a 2 stage DC magnetic amplifier that was used in my graduate school. I was in the physics lab at the University of New Orleans working with superconductors. The magnetic amplifier was used to provide feedback from a rotating...
I am trying to setup digital control of slow simple peripherals using the UART.
I am trying to locate the UART in RAM and it is not working. I have a '486 running windows 3.1.1 and using Microsoft quick basic.
This code prints numbers which are supposed to change when the com2 uart sees a...