The internet is a scary place!

posted in: Stuff, Tech 0

If you are an IT professional providing customers with Internet connectivity solutions you know that the internet is a scary place. Back in the dark ages (before 1993) when things started out everyone using the internet trusted each other. Unfortunately things changed drastically and trust is a thing of the past on the internet. When you set up … Read More

Whatsup! – There is another decent mail client on the block

posted in: Tech 2

I have written about my favourite mail client Mutt before and still consider it the best around. There is another contender around that I heard about on the linux-elitist mailing list. It is also console based and is called “Sup” short for “What’s Up”

Africa from the rooftops – East Africa Trip 1

posted in: Stuff 2

About 6 years ago I started installing advertisement monitoring systems in Africa for a small media company. A media company of course has good relationships with their customers i.e. television and radio stations. The first installations I did was in East Africa, Dar es Salaam, Nairobi and Kampala. My first trip was kind of hectic, the logistics was … Read More

Running those legacy apps

posted in: Bad Tech 0

Yesterday Andrew McGill posted the message below on the Gauteng Linux User Group mailing list. Because he is not blogging I’m doing it for him. What he is describing is one of the biggest frustrations people have with so called new and improved software. Andrew is a very competent sysadmin and if he is battling what is Eric … Read More

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The Short Weird Life -- and Potential Afterlife -- of Quantum Radar
sciencehabit writes: A mini-arms race is unfolding in the supposed field of quantum radar, spurred by press reports in 2016 that China had built one -- potentially threatening the ability of stealthy military aircraft to hide from conventional radars. Governments around the world have tasked physicists to look into the idea. Whereas a conventional radar searches for objects by detecting pulse of microwaves reflected from them, quantum radar would utilize pulses of microwaves linked by a quantum connection called entanglement. The system would retain one pulse and measure it in concert with the one reflected from the object. Correlations between the two would make it easier to spot an object through the glare of the surroundings. Or so researchers hoped. Groups have demonstrated elements of a quantum radar, but only in limited experiments that a nonquantum system can still match. And fundamental physical limits suggest the scheme can't beat ordinary radar for long-range detection. Even one of the inventors of the basic concept thinks it won't work when applied to radar.

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