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Weld Durability

04/30/2017
posted in Mechanical Engineering
by phil edwards
are socket welds prone to cracking when used on vibrating/rotating equipment
Views: 29, Comments: 4
Last comment 04/30/2017 by phoenix911
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LC Filter for Three Phase & Single Phase Thyristor DC Converter

04/30/2017
posted in Electrical Engineering
by pssdeepak
I am bit confused in selection of L & C values for a LC filter for my converter application. Mine was a two pulse & six pulse converter. I did apply f...
Views: 43, Comments: 4
Last comment 04/30/2017 by Rixter
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Circuit Breakers Question

04/29/2017
posted in Electrical Engineering
by Rabaacca
In industry using 1000hp motors what type of microcontroller based impedance relay and what maximum current rating circuitbreaker is needed
Views: 125, Comments: 9
Last comment 04/30/2017 by PWSlack
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Cryogenic Computing

04/28/2017
posted in General Discussion
by EZStreet
Back in the '70's, I read about experimental super-cold computers, that were cooled by liquid helium, and could perform thousands of times faster than...
Views: 210, Comments: 56
Last comment 04/30/2017 by tcmtech
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Wire Crimping Dies

04/28/2017
posted in Communications & Electronics
by Lenp
Maybe someone can point me in a direction for this one. We use a table top model AM-10 pneumatic terminal crimping machine. It takes most of the stan...
Views: 196, Comments: 21
Last comment 04/30/2017 by Just an Engineer
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Here's One for the Books

04/27/2017
posted in General Discussion
by dj95401
Just ran across this and thought everyone might get a kick out of it
Views: 317, Comments: 19
Last comment 04/29/2017 by ronc
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VFD For 2 Motors Driving Same Equipment - Continuation and Decision Arrived

04/27/2017
posted in Mechanical Engineering
by dhayanandhan
Three weeks back I have posted a problem about VFD Motor and Gear Box and the link is http://cr4.globalspec.com/thread/111882#newcomments Please open...
Views: 180, Comments: 26
Last comment 04/29/2017 by Andrew Westman
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Terminology

04/27/2017
posted in Electrical Engineering
by Rscott9399
This one seems kind of stupid so keep the laughter down Came across something today on a drawing by a company from a different company. Its a spec t...
Views: 270, Comments: 24
Last comment 04/30/2017 by 7anoter4
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UL508A 3 Phase Color Code?

04/27/2017
posted in Electrical Engineering
by Rscott9399
Hello I have a copy of UL508A Trying to locate the appropriate wire color for 3 phase wiring I was always under the impression of the following L1...
Views: 164, Comments: 26
Last comment 04/28/2017 by Phys
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THHN/THWN Versus XHHW-2/X

04/27/2017
posted in General Discussion
by tonyhemet
I spoke with a local electrician yesterday about installing new conductors for a remodel for an evaporative cooler install. He said that he would use...
Views: 156, Comments: 12
Last comment 04/29/2017 by jonaparker
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2250kW 3.3kV Air Cooled And Water Cooled Drive

04/27/2017
posted in Electrical Engineering
by Ganny.134460
We are planning to install a 2250kW 3.3kV crushing unit motor with a VFD. But VFD Manufacturers are recommending to use water cooled drive since it is...
Views: 179, Comments: 12
Last comment 04/29/2017 by Andrew Westman
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Cell Phone ID's and CCTV

04/27/2017
posted in General Discussion
by brich
Hey all fruitless searches on my part, so the question is.... has anyone heard or know of a CCTV camera (system) that while monitoring people moving...
Views: 252, Comments: 35
Last comment 04/30/2017 by truth is not a compromise
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Human Rate Of Freezing In A "Waterless" Place

04/26/2017
posted in BioMech & BioMed
by James Stewart
Does everyone remember the movie: The Day After Tomorrow ? Apparently, the winds so fierce, and the cold so deep, that anyone left outside during the...
Views: 469, Comments: 93
Last comment 04/28/2017 by Sapling
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Quantum Computing Age Will Start This Year

04/24/2017
posted in General Discussion
by Bayes
I've been interested in Quantum Computing since the early 2000s because of its potential to revolutionize materials science (see here). A few years ba...
Views: 284, Comments: 41
Last comment 04/26/2017 by gutmonarch
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Wow is This The First Electric Flying Transport For People

04/24/2017
posted in General Discussion
by SolarEagle
https://kittyhawk.aero/ Pretty cool, but what's the range?
Views: 389, Comments: 41
Last comment 04/26/2017 by James Stewart
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Frustrating Fastballs: Newsletter Challenge (May 2017)

04/30/2017 posted in Challenge Questions
This month's Challenge Question: Specs & Techs from GlobalSpec: Once in a while you may hear a baseball player describe a pitcher’s pitch a...
04/30/2017 Views: 9, Comments: 1
Last comment 04/30/2017 by Rixter
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Selfies as an Art Form

04/29/2017 posted in The Engineer's Notebook
by M-ReeD
Taking a picture used to be a simple matter of standing in front of a person aiming a camera in your direction while demanding that you smile and say...
04/29/2017 Views: 96, Comments: 8
Last comment 04/30/2017 by Andrew Westman
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Mini Tops British Poll of Best British Cars of All Time

04/28/2017 posted in Hemmings Motor News Blog
by dstrohl
A poll by British motoring magazine Auto Express to determine the 50 best British cars of all time has put the classic 1959-2000 Mini in the number on...
04/28/2017 Views: 114, Comments: 14
Last comment 04/30/2017 by Rixter
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Hacking the Lake

04/27/2017 posted in Water & Wastewater Systems
by MaggieMc
As a Pennsylvania native, Lake Erie was always felt like our great lake—even though I grew up hours from it and other states may have a more sig...
04/27/2017 Views: 158, Comments: 1
Last comment 04/28/2017 by James Stewart
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Fact Check: Henry Ford Didn’t Design the Model T as a Multi-Fuel Vehicle

04/27/2017 posted in Hemmings Motor News Blog
by dstrohl
Ask old-timers what they’ve run their Model T on beside gasoline, and the responses will start to sound like the list of potential fuels for the...
04/27/2017 Views: 160, Comments: 2
Last comment 04/28/2017 by James Stewart
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Researchers Build a Ultrasonic Heat-free Clothes Dryer

04/27/2017 posted in The Engineer's Notebook
by Hannes
Earlier this month Business Insider reported that a team of researchers from Oak Ridge National Laboratory had developed a prototype clothes dryer tha...
04/27/2017 Views: 312, Comments: 30
Last comment 04/29/2017 by PFR
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Open Diff: My Favorite Gear

04/26/2017 posted in Hemmings Motor News Blog
by dstrohl
There’s a 2002 Subaru WRX wagon in my driveway. All stock – 16-inch wheels, stock turbo and intercooler, no mods to speak of beyond a K&am...
04/26/2017 Views: 188, Comments: 5
Last comment 04/27/2017 by JustCurious
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Are You Really Hungry?

04/26/2017 posted in Sports, Fitness, and Nutrition
by Chelsey H
As a baby, when you were full you would stop eating. And you would only eat again when you were hungry. Don’t you wish it was like that again? T...
04/26/2017 Views: 145, Comments: 3
Last comment 04/27/2017 by James Stewart
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Guess the Architecture! for 4/25/2017

04/25/2017 posted in Guess the Architecture
Do you recognize this building?
04/25/2017 Views: 190, Comments: 13
Last comment 04/26/2017 by horace40
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Scavenger Hunt: Drive Me Wild

04/25/2017 posted in Hemmings Motor News Blog
by dstrohl
Due to the format of our Hemmings Find of the Day feature, we don’t always get to highlight the more unusual vehicles in the Hemmings.com classi...
04/25/2017 Views: 185, Comments: 7
Last comment 04/29/2017 by JIMRAT
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Woman of the Week – Jane Cooke Wright

04/24/2017 posted in WoW Blog (Woman of the Week)
by lmno24
Jane Cooke Wright (also known as "Jane Jones”) was a pioneering cancer researcher and surgeon. She is most known for her contributions to chemot...
04/24/2017 Views: 153, Comments: 2
Last comment 04/25/2017 by Mikerho
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Wasteland—From Waste to Architecture

04/24/2017 posted in Building & Design Blog
by MaggieMc
The Guess the Architecture post for last week was of a rather unique house by Lendager Arkitekter. The Upcycle House, as it’s called, was an exp...
04/24/2017 Views: 151, Comments: 15
Last comment 04/27/2017 by James Stewart
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Best Practices in Eco-Friendly Innovation for Manufacturing and Materials Handling Industries

04/23/2017 posted in Environmental Technology
by ahorner_22
For many manufacturers, the prospect of moving towards eco-friendly solutions is very much front of mind; however, implementing the necessary changes...
04/23/2017 Views: 182, Comments: 4
Last comment 04/24/2017 by James Stewart
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Conflict-Resolving Technology

04/22/2017 posted in The Engineer's Notebook
by M-ReeD
There are few things you can count on in life. Something that can be counted on: conflict with your significant other. Some might argue that it isn&rs...
04/22/2017 Views: 218, Comments: 25
Last comment 04/25/2017 by phoenix911
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Documenting the Smell of History

04/21/2017 posted in Biomedical Engineering
by MaggieMc
It seems that nowadays, we document everything. We can archive our sense of sight in photographs, the things we hear in audio or video recordings, the...
04/21/2017 Views: 234, Comments: 33
Last comment 04/30/2017 by SolarEagle
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