Karma certainly is a swift vixen, isn't she? I was a few hours removed from editing Meaghan Ziemba’s column, Smartphone Shakes, for the latest issue of Wireless Design & Development magazine (PD&D’s sister) when I was retelling the story of her troubles following an incident involving a barroom toilet and her smartphone — nothing pairs well with such sleazy settings, particularly electronics.
I recently designed a low power, low noise, power supply for digital work. The nominal output voltages as designed are +5 volts and +3.3 volts. One hundred and fifty milliamps each. With a lightly regulated five volt supply for powering LED back lights.
For years the bee colony collapse disorder has been showing the difficulty of the scientific inquiry process. And that difficulty often becomes more difficult if interests with lots of money at stake want to block certain conclusions. One-Third of U.S. … Continue reading →
In his article, “Should Engineers Be Licensed,” posted on www.pddnet.com Monday, April 22, Karl Stephen presented an interesting question that generated a great many comments and some debate among readers. Perhaps a way to answer the question is to answer the question phrased differently.
On April 30, the World Wide Web turned 20. Oh, how the years pass us by. When we think about how people use the Internet today, some of us cringe. Facebook, Twitter, and YouTube pervade every virtual inch, enticing thousands to waste countless hours of their lives....
Usually, these days, I seem to hear the word "what" as a part of a "Wait... What?" statement, as in a short-cut for: "That sounds good" - pause - "No, it doesn't. It doesn't even make sense." It can be...
Though people often refer to the toilet as “the throne,” the euphemism has never been taken quite this literally before. Kohler, the family-owned bath and kitchen company and inventor of all around fancy bathroom fixtures, has really gone all out with their newest creation, Numi.
In a repetition of an experiment I have posted about here on the Curious Cat Science and Engineering Blog before (Letting Children Learn – Hole in the Wall Computers): Given Tablets but No Teachers, Ethiopian Children Teach Themselves The experiment … Continue reading →
Here’s a rundown of the most read, most popular, most awesome articles on the web. Take a look at what you missed the first time around or check up on an old favorite to see the conversation in the comments. Keep checking out the Lead at www.ecnmag.com and follow us on Twitter @ecnonline for our most up-to-date articles.
A few months ago, my wife bought a lamp at an office-supply place to light up the table where my father-in-law plays dominoes with us. He’s 87 and his eyesight isn’t what it used to be, so having lots of light in the right place is important. The ceiling light doesn’t quite do the job.
Being "green" has gone from a technical effort to economically reduce energy use and avoid waste where such avoidance makes sense to actively reducing our effectiveness to show how committed we are to the Green Religion. And there is so much of this going on. In my opinion we would be much better off worshiping trees. Or cows.
The TV until now has evolved at a pace largely detached from Moore’s Law, an observation that the number of transistors on a unit area of integrated circuit doubles every two years. Its consequence is that computing power doubles per unit of cost in the same time.
One of the treats of living in a tropical climate is drinking coconut water. I love drinking the water from fresh coconuts. This video provides insight into the many uses of all parts of the coconut tree. The Truth About … Continue reading →
The “Internet of Things” is a phrase used to describe how the internet will link traditional smart devices, and a wide range of additional physical assets to allow these endpoints to generate and share data. Nearly every product will have an IP address and communication capability — not just networking and telecommunications devices...
There is a push on to make buildings more energy efficient. This is in part being accomplished by making them meet LEED Standards. What does LEED stand for? Leadership in Energy and Environmental Design. LEED promises to "Reduce harmful greenhouse gas emissions".