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How exactly does wireless mobile telecommunications technology work?

09/25/2016
posted in Communications & Electronics
by Ivanov327950
Dear community, As far a I know about mobile networks (some basics from a Communication Networks University course), coverage is based on the cell te...
Pathfinder Tags: 4G CAT S60 cell Communication Networks gsm ...
Views: 2, Comments: 1
Last comment 09/25/2016 by lyn
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Maybe space X encountered a garbage bag full of hydrogen?

09/25/2016
posted in General Discussion
by JE in Chicago
Ok.. not likely.. "At this stage of the investigation, preliminary review of the data and debris suggests that a large breach in the cryogenic helium...
Pathfinder Tags: aircraft airplane frozen turkey garbage bag hydrogen
Views: 8, Comments: 2
Last comment 09/25/2016 by lyn
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Engineering Graphics

09/25/2016
posted in Civil Engineering
by Anonymous Poster
A cylinder 40 mm diameter and 50mm axis is resting on one point of a base circle on VP while its axis makes 45 degree with the VP, draw its projection...
Views: 33, Comments: 4
Last comment 09/25/2016 by Rixter
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Pressure Vessel

09/25/2016
posted in Mechanical Engineering
by purode333
Dear sir, Can ASME sec VIII div. allow to manufacturer to use non ASME materials for non pressure parts to attached it to pressure parts in pressure...
Views: 30, Comments: 2
Last comment 09/25/2016 by Crabtree
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How to Open Manholes on a Ball Mill dia 6m x 9 m length

09/25/2016
posted in Mechanical Engineering
by Ricardo Pasco
I have to open two manholes on a Ball Mill Shell (6 m dia x 9 m length). Please, Could you tell me your points of view or opinions how to open it. I...
Pathfinder Tags: Manholes
Views: 50, Comments: 6
Last comment 09/25/2016 by aurizon
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Nuvo H2o

09/24/2016
posted in General Discussion
by tonyhemet
Yesterday a customer asked me to fix her swamp cooler because it wasn't pumping water, turned out the pump shaft had froze up because of hard water mi...
Views: 71, Comments: 10
Last comment 09/25/2016 by Crabtree
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277/480v 3 Phase Line to Line vs Line to Neutral

09/24/2016
posted in Electrical Engineering
by jdsighter
Please help us understand, thanks in advance. We're building a commercial greenhouse, (all applicable codes will be respected) and using sixty 1000w...
Pathfinder Tags: 277/480v 3 phase high wye an economy of electricity greenhouse lighting
Views: 149, Comments: 12
Last comment 09/25/2016 by JRaef
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Flow Metter for Painting Application

09/24/2016
posted in General Discussion
by nhat925
Dear all, Does anyone know the most suitable flow metter used in the application as below: * Normal flowrate: 1 l/minute * Normal temperature ~25-...
Pathfinder Tags: Flow metter
Views: 85, Comments: 9
Last comment 09/24/2016 by tcmtech
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How to Find Voltages Between Light Bulbs in a Series Circuit and Current?

09/23/2016
posted in Electrical Engineering
by tmajeske57
I am doing my lab for my Electricity and Electronics class on Multisim and cannot figure out, in a series circuit, coming from a function generator pr...
Views: 219, Comments: 8
Last comment 09/24/2016 by kvsubramanyam
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HOIP Solar Cells

09/23/2016
posted in Sustainable Engineering
by James Stewart
Hybrid Organic-Inorganic Perovskite solar cells efficiency breakthrough, opens up a series of new engineering possibilities, exclaims Professor Zhu....
Pathfinder Tags: efficiency perovskite cells solar power
Views: 97, Comments: 8
Last comment 09/24/2016 by spades
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CR4 App for Smartphone

09/23/2016
posted in General Discussion
by Usbport
I sometimes look at CR4 using my smartphone (iphone 6s+). I noticed this morning that once I added a comment to a thread there was no way to get back...
Pathfinder Tags: CR4 CR4 App smartphone
Views: 93, Comments: 9
Last comment 09/23/2016 by BestInShow
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Non Overloading Impeller

09/23/2016
posted in Mechanical Engineering
by dreamz
I was reading going through a specification for HRSG (Heat recovery steam generator) feed pumps (often called as BFP - Boiler feed pump). The owner ha...
Pathfinder Tags: bfp non-overloading type pump
Views: 136, Comments: 3
Last comment 09/25/2016 by Codemaster
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Transformer' Air Gap

09/21/2016
posted in Electrical Engineering
by Olie
Hi folk I am building a transformer with 1/16" air gap. What material can be used to fill this air gap ?? Thanks for your help in advance.
Views: 221, Comments: 52
Last comment 09/24/2016 by PWSlack
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Is it the Battery, the Line or the Motor?

09/18/2016
posted in General Discussion
by r&ddoc
Next Tuesday seems to be the great day: after 30 months of hard after hours and almost every weekend work on my boat it finally gets back into the wat...
Pathfinder Tags: Windlass electrical issue
Views: 345, Comments: 45
Last comment 09/21/2016 by Petor2
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Leaking AA Cells

09/21/2016
posted in General Discussion
by Autobroker
I have a cordless mouse that I really like. It's a Logitech M515 and it works on all kinds of surfaces; it's pretty cool and it doesn't have a laser....
Views: 322, Comments: 40
Last comment 09/24/2016 by phoenix911
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How Do You Make Liquid Drops in Quantity?

09/18/2016
posted in Manufacturing
by Flyboy33
Needing to know methods to make liquid droplets of uniform size in large quantities. They will be subsequently cooled to solidify but need some ideas...
Pathfinder Tags: droplets drops
Views: 305, Comments: 39
Last comment 09/22/2016 by jt
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CPU Off the Clock

09/18/2016
posted in Software & Programming
by Tonymech
Hi all In the last few days my CPU usage has risen, sometimes 100% with nothing running, as in the picture and consequently every thing has slowed to...
Pathfinder Tags: CPU
Views: 589, Comments: 38
Last comment 09/21/2016 by jdsighter
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Latest News from Engineering360

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Standards Q&A: Interpreting ASME’s Post Weld Heat Treatment Requirements

09/25/2016 posted in Fastening, Joining & Assembly
by reprendergast
ASME Standards often require careful reading in order to interpret them correctly and engineers can be left with questions about some details. In this...
09/25/2016 Pathfinder Tags: ASME standards Welding
Views: 48, Comments: 0
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Robots Helping Robots

09/25/2016 posted in Robotic Systems Blog
by Engineering360 eNewsletter
Imagine what industry might look like if robots could cooperate with each other spontaneously using body language as their guide. In a manner similar...
09/25/2016 Views: 23, Comments: 0
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Raygun Guitar Makes Music with Quadrant Techtron® HPV PPS

09/25/2016 posted in Plastics & Resins Blog
by QGuy
For decades, luthiers (individuals who make or repair string instruments generally consisting of a neck and a sound box) have been searching for the p...
09/25/2016 Pathfinder Tags: guitar materials plastic Quadrant
Views: 37, Comments: 2
Last comment 09/25/2016 by Rixter
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Battery Technology is Finally Catching Up

09/24/2016 posted in Quality Control
by Engineering360 eNewsletter
At long last, battery technology has begun to show signs of advancing, the way the rest of the electronics industry has for decades. This startup rece...
09/24/2016 Views: 111, Comments: 4
Last comment 09/25/2016 by LOCKDUKE
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Full Steam Ahead!

09/23/2016 posted in Power Generation and Distribution Blog
by Engineering360 eNewsletter
Steam is responsible for generating 80% of the world's power. It's required for coal, combined-cycle natural gas, nuclear, geothermal, and even concen...
09/23/2016 Views: 122, Comments: 5
Last comment 09/24/2016 by James Stewart
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Zee, Zed, or Zulu for Thermal Acoustic Insulation

09/22/2016 posted in Elasto Proxy's Sealing Solutions Blog
by Doug Sharpe
Americans say “Zee” for the letter Z. Canadians say “Zed” instead. In both North American countries, their militaries say &ldq...
09/22/2016 Pathfinder Tags: acoustic-thermal insulation thermal-acoustic insulation
Views: 118, Comments: 0
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Caption This for 9/23/16

09/22/2016 posted in Caption This!
by LakeGrl
This week's image: Be sure to vote for your favorite caption! Thanks to brich for submitting this image.
09/22/2016 Pathfinder Tags: engineering engineering images engineers life funny images wheels
Views: 347, Comments: 21
Last comment 09/23/2016 by phoenix911
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Hemmings Cinema: Ferrari on Ferrari, the First turbine Chrysler, Dying to be a Hero

09/22/2016 posted in Hemmings Motor News Blog
by dstrohl
* Dating to 1984, this 25-minute interview with Enzo Ferrari is probably the best such interview put down on video and the best account of Ferrari f...
09/22/2016 Pathfinder Tags: Chrysler Ferrari turbine video
Views: 163, Comments: 0
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Cyclical or Structural - the Oil Price Debate Continues

09/22/2016 posted in Oil & Gas Technology
by Engineering360 eNewsletter
Are oil prices still cyclical, or is there something new going on? As the industry digs itself out of the third largest price decline in 30 years, som...
09/22/2016 Views: 105, Comments: 1
Last comment 09/23/2016 by tcmtech
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The Death of 3D Printing Has Been Greatly Exaggerated

09/21/2016 posted in 3D Printing
by HUSH
Did you get the memo? Perhaps you read the obit. 3D printing is dead. Over. Done with. Kaputski. This past summer there were many articles criticizin...
09/21/2016 Pathfinder Tags: 3D Printing additive manufacturing
Views: 188, Comments: 4
Last comment 09/22/2016 by frankd20
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Open Diff: Of Mice and Men

09/21/2016 posted in Hemmings Motor News Blog
by dstrohl
Last week, I decided that the two-year-old cabin air filter in my truck had served out its useful life and was due for replacement. Swapping it out wa...
09/21/2016 Pathfinder Tags: classic auto Discussion pest
Views: 218, Comments: 12
Last comment 09/23/2016 by C-Mac
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Nokia Achieves Internet Speeds 1000x Faster Than Google Fiber

09/21/2016 posted in Derivations
by Bayes
Google Fiber has connection speeds of 1 GB/s. That's about 100x faster than most people's cable modem connection. Naturally Google Fiber is the prefer...
09/21/2016 Views: 166, Comments: 6
Last comment 09/22/2016 by Bayes
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Implants Connect Using Wi-Fi

09/21/2016 posted in Medical Equipment Design
by Engineering360 eNewsletter
Due to their size and location in the body, most medical implants are too power-limited to transmit data via traditional wireless routes. Wireless con...
09/21/2016 Views: 48, Comments: 0
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Motorcycle Cannonball is Off to a Shaky Start – the First Three Days Narrow the Field

09/20/2016 posted in Hemmings Motor News Blog
by dstrohl
But why should we be surprised? Previous semi-annual Motorcycle Cannonballs have put age restrictions on the bikes that could be entered. In 2010, onl...
09/20/2016 Pathfinder Tags: classic auto motorcycles race
Views: 184, Comments: 0
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A Reboot for Flywheel Design

09/20/2016 posted in Alternative & Renewable Energy Blog
by Engineering360 eNewsletter
Flywheel energy storage system design has been revised by a Lancaster University, UK, student to retain energy kinetically in a levitated floating mas...
09/20/2016 Views: 210, Comments: 8
Last comment 09/25/2016 by JE in Chicago
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