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. […]
FEATURED TESTIMONIAL – “I was able to pass the HVAC PE Exam because of the DTC.”
“After a couple of failed attempts at the HVAC PE Exam. I decided to find a different method of studying and purchased the DTC HVAC Test Drive module to see if the lectures, presentations, and problems would work for me. I was very impressed with the quality of the program and completed all the modules […]
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 […]
Don’t Think About Bananas!
Well, maybe we should. Apparently a very serious disease, fusarium, or banana wilt, is already affecting a fourth of the world’s banana crop. This fungus travels under the ground, so spraying from above is not an option. A very promising strategy that is being developed between the International Atomic Energy Agency (IAEA) and scientists from several […]
FEATURED TESTIMONIAL – 5-Star Google Reviews for DTC
We opened up our Google Reviews recently, and we’re proud to share our first Google Reviews, all are 5 Stars! Mechanical PE Exam Prep That WorksTest Drive Your Course for Only $50! Dr. Tom’s Classroom – Your the Extraordinary
The Neal Armstrong Award of Excellence – A Night to Remember
No, I did not receive this award, but I had the next best experience – one of my former students did. As a teacher, the primary driving force behind everything I do is the knowledge that, in some small way, I am changing people’s lives. It is rare, however, to know just how much, or […]
Get a Grip – From a Dead Spider?
Ok, we are going off the deep end here. Mechanical engineers at Rice University have discovered that dead spiders have an incredible grip. Wolf spiders that they have been doing research on in the lab can pick up as much as 130% of their body weight – when dead that is. Apparently, unlike most other […]
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 […]
DTC – Better Prices with Flexible Payment Options
At DTC, we realize that the expense of exam prep makes embarking on preparation for the PE Exam even more daunting. That’s why we are committed to making it as stress free and affordable as possible for you to get started on your way to becoming a PE. With our Test Drive option and our […]
DTC’s Testimonial Page – Hear What Our Students Are Saying
Taking the PE Exam is a daunting endeavor, and choosing a PE Exam prep course is a major decision. That’s why we have worked so hard to make our courses the best Mechanical PE Exam prep courses out there and to keep our prices as low as possible. We’ve had hundreds of students who have […]
