jonsen

55 ms·

541.
by jonsen 8y ago
This was a warming read. I’m not a woman. I’m not even in the 70ies. Anyway.
542.
by jonsen 8y ago
I’d guess that it used the old times trick of saving the return address by modifying the code of the called subroutine. A recursive call would then overwrite the primary callers return address.
543.
by jonsen 8y ago
1 MHz clock on the 6800 family of processors, including the 6502, is equivalent to 2 MHz clock on the Z80. The 6800 architecture used a so called two-phase clock. Each phase, positive and negative, of the clock cycle was used to do work.
544.
by jonsen 8y ago
The compiler was ligthning fast. No need for floating point artihmetic to compile a program.
545.
by jonsen 8y ago
Code written by one couldn't be ported to the other, but had to be rewritten. That’s not my experience. I once ported a program from the 6800 (the mother of the 6502) to the Z80. It was very straight forward. But to my surprise the v
546.
by jonsen 8y ago
No single human says this is ok. There is no human consensus this is ok. This is a form of non-human intelligence taking over.
547.
by jonsen 8y ago
Fortunately I didn’t have access to any Forth implementation when I read Thinking Forth so I could get full credit from the reading undisturbed by any practicing.
548.
by jonsen 8y ago
About the time of this book I transitioned from computer engineering and assembler programming into software engineering. I was lucky to stumble upon Thinking Forth. Swallowed it. Gave me invaluable insight. (Another important transition st
549.
by jonsen 8y ago
Contemporary students are too polite. In the middle ages they brought rotten tomatoes.
550.
by jonsen 8y ago
Fragility grows with size. The test speed of the downscaled version should be higher if anything.
551.
To fix the tech gender gap, fix computer science education(washingtonexaminer.com)
3 points by jonsen 8y ago|6 comments
552.
by jonsen 8y ago
The handle at a right angle but no closer is okay.
553.
by jonsen 8y ago
How is this relevant? Pouring liquid into a Pythagorean cup does not lead to two-phase flow?!
554.
by jonsen 8y ago
It does depend on the load. The grid voltage is transformed to a lower suitable voltage. The transformer has an inner resistance as a battery has. The AC voltage is rectified and smoothed with a relatively big capacitor. There is a ripple
555.
by jonsen 8y ago
One cubic micrometer is 1µm³. One cubic millimeter is 1mm³.
556.
by jonsen 8y ago
So 1 atom per cubic micro meter is about right for 0.1 microbar.
557.
by jonsen 8y ago
That’s a lot of pressure made by one tiny little atom. I can’t believe that.
558.
by jonsen 8y ago
Power from the grid is AC. It falls to zero a hundred times a second.
559.
by jonsen 8y ago
They are testing a new machine learning algorithm to see if it can infer that page from the other pages.
560.
by jonsen 8y ago
“In the hopes that this work may in some way contribute to their exploration of space, this is dedicated to the crew members of this country' s present and future manned space programs. If only I could join them in their exciting endea
561.
by jonsen 8y ago
“Education is what survives when what has been learned has been forgotten.” B. F. Skinner
562.
by jonsen 8y ago
It depends on perspective. Having a finite stack is just a way of organizing a state machine. In practice all computer software is state machines. A computer is nothing but a big state machine. A very big finite state machine. Running some
563.
by jonsen 8y ago
It did for me.
564.
by jonsen 8y ago
I don’t think it was an attack on your use of language. Even if most probably don’t agree that you are helping illiteracy by alternative use of well defined concepts. It’s factually wrong to say that the net force is zero at the peak, when
565.
by jonsen 8y ago
It’s “g”. “G” is the gravitanional constant.
566.
by jonsen 8y ago
...throwing a ball... disregarding air resistance it will be in free fall all the way back to the ground. There is nothing special about the peak.
567.
by jonsen 8y ago
An airplane can get closer. It can actively compensate for air resistance.
568.
by jonsen 8y ago
Free fall. Like inside an elevator with a broken cable. Here the aeroplane starts the free fall with considerable upwards speed. That and the horisontal speed form an upward parabola path of free fall.
569.
by jonsen 8y ago
(sound is very slow when passing through mercury) From your link: “The high speed of sound in mercury (1450 m/s) meant that the time needed to wait for a pulse to arrive at the receiving end was less than it would have been with a sl
570.
by jonsen 8y ago
“...Cognition in the Wild, a detailed study of distributed cognitive processes in a navy ship...”: https://en.m.wikipedia.org/wiki/Edwin_Hutchins

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