Attention HVAC Engineers! DTC Has the Best Course for PE Exam Prep
WATCH OUR VIDEO! If you’re looking for your best chance to pass the HVAC & Refrigeration Mechanical PE Exam, Dr. Tom’s Classroom offers a comprehensive online prep course for the HVAC & Refrigeration PE Exam, specifically developed for the CBT format exam. Our HVAC course applies the successful Dr. Tom Method for CBT to the […]
Keeping a Smile on the Mona Lisa in Summer’s Heat
The Louvre Museum and all of Paris have experienced one of the hottest summers in memory. Yet, what’s keeping the Mona Lisa and the millions of visitors cool and comfortable is not immediately obvious. A joint venture company named Fraicheur de Paris [literally – “freshness of Paris”] and jointly owned by EDF (France’s largest energy […]
A Battery That Never Goes Dead
The most troublesome problem with wind or solar power systems is the weather. For the energy these systems create there needs to be a way to store the excess energy and then be able to deliver that excess energy precisely when it is needed. One innovative way to store this energy is to use what […]
With DTC – Pay Up Front and Save $100
Everyone loves a bargain, and with our Pay Up Front option, you can save $100. At DTC, we realize that buying a PE Exam prep course is a major commitment in both in time and money, and we work to make sure our courses are the best and the most affordable. “The course was worth […]
Celebrating Professional Engineers Day – Flash Sale $50 Off!
To celebrate Professional Engineers Day, DTC is having a Flash Sale! Save $50! Hop on your computer Wednesday August 3 or Thursday August 4, use Discount Code #LicensedPEday, and save $50 on all DTC Pay-Up-Front Mechanical PE Exam Review courses. Your cost, only $800! From Dr. Tom – What’s Your Dream? Dreams are our most […]
DTC Is Exactly What You Need to Pass the PE
We know you’re crazy busy juggling work and family AND your PE Exam preparation. That’s why all DTC courses are tailor-made to give you maximum flexibility to fit your review into your already hectic schedule, giving you just what you need to pass. It’s not only the best prep for the Mechanical PE Exams, it’s […]
Emergency Freshwater from Seawater
After making emergency medical assistance available, probably the most critical thing needed after a disaster, especially hurricanes, is water. It is normally brought into the disaster area in water bottles on pallets. To address other possibilities, the U.S. Department of Energy sponsored a three year competition called “Waves to Water” with the expressed goal of […]
Whirligig Wonders
A farm machinery repairman, Vollis Simpson, created the magical, mechanical creations that became North Carolina’s official folk art. Known as “whirligigs,” the huge kinetic sculptures have been installed around the United States, but the largest collection is near the family farm in Wilson, North Carolina. Other installations include the American Visionary Art Museum in Baltimore and the […]
FEATURED TESTIMONIAL – “Great Course That Keeps You Engaged”
“I took Dr. Tom’s thermal/fluids PE prep course. Dr. Tom presents the prep course material personally. Starting from the first lesson, it’s obvious that Dr. Tom is a man that is extremely passionate about teaching. If you are serious about taking a PE and not wasting your time, I would recommend Dr. Tom’s Classroom. I […]
A New Way to Build and Insulate with Wood
Several scientists at the Nanjing Forestry University in China, as reported by the American Chemical Society’s Nano Letters publication, have created a new insulation material made of wood. The scientists connected nanocrystals of wood cellulose with silanes (silicon compounds) to create an aerogel foam that has a visible light reflectance of 96% and an emittance […]
