With DTC – Practice Makes Perfect
Poor time management during the exam. That is the most common reason our participants say kept them from passing the exam. With the clock ticking, especially on the CBT format exam, it’s easy to get thrown off your exam-day plan, waste time on difficult problems, realize the clock is running out, and panic. But it […]
More than Just Data – Using Data Centers to Heat a Town
Data centers have popped up in many places around the world to handle our appetite for web-browsing, online purchasing, and commercial information services. These facilities are very energy intensive and use 1-2% of the world’s energy demand. This is expected to be 20% or more in the near future. Almost 100% of the electricity used […]
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 […]
DTC – Flexible to Fit Your Schedule and Budget
DTC’s online courses are designed to give you the maximum flexibility in working your PE Exam preparation into an already busy schedule. We keep lessons short and focused, we provide you with detailed study plans, and we make it all available 24/7. And we offer three flexible payment options to make becoming a PE as […]
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 […]
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 […]
