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 […]
Achieve Your Extraordinary. Become a PE.
Getting your Professional Engineer’s license will open up a world of possibilities for you to achieve the extraordinary. And DTC can help you make those possibilities a reality with our comprehensive prep courses for the Mechanical PE Exams and our strategic plan to prepare you to pass the exam. Years of work went into developing […]
Dual-Purpose Home Heat Pump Helps Reduce Emissions
The US Department of Energy is pushing residential, commercial, and industrial energy users to switch from natural gas and other fuels to electricity. Several cities in California are banning natural gas for new buildings. One important way this can happen is to install heat pumps to provide space heating and cooling, and to provide domestic […]
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 […]
Charge While You Shop – Solar Parking Lots
Internal combustion vehicles run out of gas, electric powered vehicles run out of electrons. However, IC vehicles usually do not have a problem finding a gas station, whereas EV’s have a big problem finding charging stations. An idea posed in a recent ASME article is to construct solar panel roofs over parking lots, in particular parking […]
Attention Mechanical Engineers! Now Is the Time to Get Your PE!
You have achieved a lot in your career, but you know you are capable of more. Getting your PE license opens up a whole new world of possibilities for you to achieve the extraordinary. At DTC, we know the Mechanical PE Exam, and we can help you make those possibilities a reality with our comprehensive […]
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 […]
Weed No More, Let the Robot Do It
Autonomous robots that clean your floors and carpet have been around for a while. However, the nemesis of those who supply our plant-based food is weeds. Getting seeds into the ground is straightforward enough, but the battle against weeds in ongoing until the crop is harvested. The battle is expensive and time-consuming, both of which are problematic for […]
Try DTC Courses Before You Buy for $50
With our Test Drive and Pay-As-You-Go options, you can try out our courses for only $50 before you buy the full course. We’re so sure you’ll like what you see that there’s no obligation beyond your initial purchase. “Just finished the intro and it was great! I was skeptical about subscribing to anything and was […]
Film Makes Wearing PPE Suits a Little More Bearable
At the height of the COVID-19 pandemic many healthcare providers – nurses, doctors, and others in contact with infected patients, wore PPE that included full body suits. Firefighters, first responders, and even the military wear these suits, depending on the type of situation they are responding to. These suits are designed to limit exposure to […]
