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, […]
MECHANICAL PE EXAM TIP – Units, Units Units!!!
If I wasn’t Dr. Tom, I’d be Dr. Units. I cannot tell you how many times units are the reason someone gets the wrong answer to a problem. It might be as simple as inches needed to be converted to feet, or the other way around. Or, it is a combination of units like gallons per minute […]
From Solar Waste to a Hot Opportunity
The proliferation of solar panels on roofs and in solar farms over the last 20 years is expected to create a new problem – what to do with the panels at the end of their lives? An estimated 8 million tons of waste per year is expected by 2030 and ten times that by 2050. […]
Death Marks Time in Prague
The astronomical clock in Prague is the oldest still in operation (first installed in 1410). The impressive clock has three main mechanical components — the astronomical dial, the calendar dial, and an hourly display of figures and sculptures. The astronomical portion shows the position of the Sun and Moon and the calendar dial shows the months of […]
The Big “After Graduation” Question – Is the Answer Still “Plastics?”
In the 1967 movie “The Graduate,” the character played by Dustin Hoffman has just graduated from college and his parents are throwing a big celebration party. The question he is asked many times by his parent’s friends is “What do you plan to do now that you have graduated?” One of his parents’ friends comes up to […]
FEATURED TESTIMONIAL – I Am Very Humbled with the Help That Was Given
“I can’t thank you enough for the thorough Thermal/Fluids PE Exam course, and I am very humbled with the help that was given in any questions or concerns I had while completing the course. Dr. Tom, I hope you and the rest of your staff understand how much a passing result means to me and all […]
A Better Mousetrap, I Mean Toaster
The viral TikTok sensation toaster by Revolution Cooking has all the bells and whistles, and it’s only $300! A touch screen on the front lets you select exactly the amount of toasting you want for just about anything you would toast. And they say it’s fast! Even has a race-car-esque name: The R180. Probably toasts from 0 […]
Fish Friendly Hydro Power
A recent ASME article noted that in 2012 a Department of Energy study identified 54,000 Non-Powered Dams, dams with changes of elevation of 15 feet or higher, which could provide 13 gigawatts of power, enough to power 5 million homes. That potential is to say the least staggering. The primary reason that these “small dams” are […]
Morphing Origami Improves Structures
The use of origami-based patterns in a variety of applications have improved the outcomes for solar array deployments, sounds systems, and crash protection systems. Glaucio Paulino and researchers from Georgia Tech have developed a new type of origami that can change from one pattern to another to optimize the structural benefits depending on the application […]
FEATURED TESTIMONIAL – Exactly What I Needed
“I took the exam several times and even took a class, but it wasn’t until I found this online classroom that I was able to finally pass. This style and organization was exactly what I needed, not to mention I just had a baby on top of taking the course. I wish I had started […]
