Category: Renewables – Science

Water and wastewater treatment plants are a place where water gets cleaned and purified and ready for drinking. Impurities such as chemicals and toxins, solids, and organisms are removed and made safe for everyone to enjoy including wildlife. So who …

From Guest Blogger Ann Shirley: What Does a Water and Wastewater Treatment Plant Operator Do? Read More »

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My colleague Nate Hagens came across a press release on one on my books today and wrote to me: “Craig: You’ve been busy…. I wrote this (linked below), in case you’re interested.  Kindly, Nate” I invite readers who are trying to …

The Future of Energy Generation and Consumption Read More »

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This year is the 200th anniversary of the confirmation of the conservation of energy, marked by the publication of British engineer Peter Ewart’s paper “On the Measure of Moving Force” in 1813.  Of course, the consequences of this are enormous.  For one, …

Conservation of Energy Sent Science in a New Direction Read More »

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It’s the birthday (1632) of the philosopher Baruch Spinoza, whose most important ideas, according to the Writer’s Almanac, were that “everything in the universe is made of a single substance, and that everything in the universe is subject to natural …

Happy Birthday Spinoza, Perhaps History’s Greatest Radical Read More »

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I have a few excellent prospects for summer interns in 2014, the latest of whom, a young man from West Virginia, just sent a resume and spoke with me on the phone this morning.  Naturally, people wonder what this internship …

Renewable Energy Internships Prove Fairly Popular Read More »

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Frequent commenter Tim Kingston sent me this very interesting piece (including a very well-made video at the bottom) on harvesting vibrational energy that is currently wasted using piezoelectricity, i.e., the property of some materials that they produce small amounts of …

Harvesting Wasted Mechanical Energy Read More »

I was honored to meet Dr. Cheryl Martin, deputy director of ARPA-E (Advanced Research Projects Agency–Energy at the CleanTechLA event yesterday.  As I pointed out when I introduced myself, she and I have at least two contacts in common:

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There are a few things – just a few — that make living in the 21st Century a pleasant experience, and they all seem to revolve around technology.  We’re living longer and healthier lives, and those of us fortunate enough …

The Most Important Arenas for Innovation Lie in Renewables and Energy Efficiency Read More »

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A shell and tube heat exchanger (pictured here) is one of the most common type of heat exchanger that you will find used in various industrial sites such as oil refineries and chemical processing plants. They are popular applications for …

From Guest Blogger Tom Grant: Reducing Maintenance Costs — Shell and Tube Heat Exchangers to the Rescue Read More »

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Here’s some bad news: the use of coal to provide energy is on the rise, and shows no sign of retreat. Yet there’s specious reasoning in the report, i.e, that renewable energy cannot provide baseload.  That’s completely untrue of geothermal, …

Energy from Coal — Some Bad News Read More »

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