From an article entitled ‘Being Poor Is Too Expensive’

…..published at

“Dressing well is an awkward catch-22. If you’re poor and you have a nice wardrobe, people think you’re irresponsible with money. However, if you dress poorly, you’re more likely to be judged poorly, especially in job interviews. How you dress can be the difference between landing the job and being ruled out as soon as you walk in the door.”

Find the whole article here.

Hackers Measure Cable Lengths with Time Domain Reflectometers

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Dont Ask Meimnoexpert:

Looks pretty simple!!

Originally posted on Hackaday:

[android] has built up a fast edge pulse generator for time domain reflectometry (TDR). TDR is a neat technique which lets you measure cable lengths using electrical signals and can also be used to locate faults within the cable.

TDR works by sending a pulse down the cable. When the pulse reaches the end of the unterminated cable it is reflected back to the source. By monitoring the delay between the original pulse and its reflection you can determine the length of the cable. We’ve seen projects that use TDR before, and it’s often used in telecoms industry to locate faults in long cable runs.

You can try TDR in your lab using only a scope to observe the delay and a function generator to create the pulse. However, the technique works a lot better with pulses that have very fast rise times. So [android] built a fast edge…

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