tube light

why does a tube light doesnt glow at low voltage while many other electronic appliances like fan,computer, AC will work even at low voltages?

Purpose of Shunt Reactor

In a recent SLD which i have seen, I noticed that a 500MVA Trafo (400/132 Kv and Teriatiary Winding of 22kv) both primary and secondary are star/star and the tertiary winding is delta. The cable from the teritiary 22kv is connected to a RC unit with a rating of 22Ohms & 130 nF and the parellely

Flanges for Precision Steel Tubes

Dear colleagues,

can you help me solve the problem of joining OD 70 precision steel tube with 3" (DN 80) steel pipe with flanges. It is easy to choose flange for 3" pipe, but what about flange for OD 70 tube - should it be custom made to fit to ansi pipe flange?

Bently Nevada Temperature Issue

Hi, we have the 3500 Bently Nevada Software at our site. I have a small doubt regarding on of the temperatures. At the moment all the temperatures at a given slot are working except one. Eg In slot 8 all the temperatures are giving me ambient readings except channels 1 and 2, after replacing them to

Imagining the Future

Each generation has its share of prognosticators — famous writers like Isaac Asimov, H.G. Wells, and George Orwell and private citizens, too — who volunteer their predictions of the future. The reports range from sobering scary to whacky. What's your view? What trends, research, technolo

DIY Wooden Sculpture Repairs

I was asked if I'd repair the roof of a wooden bird table that houses two bog oak sculptured crows (Fred and Aristotle). Originally, they were free-standing and could be moved about and posed. But once the Gibberd Garden was opened to the public, they became damaged and it was necessary to fix t

Meet the Moderator and Blogger: SavvyExacta

Now everyone has the opportunity to learn about their favorite bloggers and moderators. This week, we are featuring SavvyExacta, whose contributions to both the Animal Science and Technotourist blog add valuable content and interesting reads to CR4.

Tell me about yourself (major, colle

Alternator Calculation Conundrum

Hi folks; I've been teaching myself alternator design, trying to come up with a reasonably large alternator to run from a wind turbine to power my ocean-going raft. I've been composing my work as I go, mainly to keep track of it, to back up from my many brain-numbing confusions, but with a view to e