FEATURED TESTIMONIAL – “Gave Me the Courage to Pass the PE.”
“I attempted the PE Mechanical Machine Design & Materials Exam back in 2019 and failed, and since then I have been on and off preparing for the PE. I have tried PPI and School of PE programs, but none of them comes close to the detailed care and understanding that your program provides. DTC’s program […]
Getting Comfortable with Math
While the DTC Team was at the 2023 AHR Expo, there was an article in the Day 2 Expo daily newspaper titled “Math Matters.” That title definitely caught my attention. In my experience, if someone can do math, in particular algebra and trig, I can teach them almost anything. For example, when I teach a […]
Niobium to the Rescue!
I suspect everyone reading a recent ASME article was told, at least once when they were young, not to put an electrical device or live cord into water. This led to a corollary that you should not connect electrical wires under water. For those who work with electrical equipment, all underwater, this can be a […]
Bookbot at NCSU Library – Efficient and Fascinating
Robotic book delivery systems, also known as bookBots, are a popular technology in new libraries – they help maximize usable space in the library and can efficiently store a tremendous number of books. In NC State University’s Hunt Library, the bookBot can store up to 2 million items and deliver them within 5 minutes of […]
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 […]
World’s Largest Thermal Energy Storage Starts Up
The biggest impediment in using renewable energy (solar and wind) is that it is intermittent. That is, the wind doesn’t blow all the time and solar energy depends on the time of day and weather. Energy storage is a key way these renewable energy sources can be made more useful. A 14.9 million gallon tank in Germany will […]
Meet DTC’s Instructors at AHR Expo 2023
Come by the DTC AHR Expo Booth (BC1613) and meet our instructors, Dr. Tom (AKA Dr. Thomas H. Brown) and Dr. Steve Terry (DTC HVAC & Refrigeration Instructor). They’ll be there to explain what makes our Mechanical PE Exam Review courses so effective and to answer your questions. We’ll also be giving away FREE courses, […]
So Many Distractions – How to Stay Focused
In a recent ASME article caught my attention. It was titled “Mastering More Willpower” by Jean Thilmany. Her premise for the article was “By strengthening your willpower you’ll get more done and more satisfaction in work and life.” Collaborating with Roy Baumeisster, professor of psychology at Florida State University and the University of Queensland in […]
Páternoster: The Continuously Moving Elevator
Instead of carrying things up inclines or stairs, a variety of methods have been invented to move people and things vertically – an interesting example is the páternoster. The páternoster is a continuously running elevator that was first developed in the late 19th century, and there are still a number of surviving examples like this one […]
Paper a Roof to Save Cooling Energy
Northeastern University researchers have developed a new “paper” that, when applied to roofs, can dramatically reduce cooling loads. The paper is made of hydroxyapatite materials spun into fibers and made into a paper. Its white color reflects the majority of the direct rays from the sun. In addition, heat from inside the structure is radiated […]
