Sponsored by:

Forum : General Discussion

To post to this forum you must register.
Sort
Page 1 of 166: « First 1 2 3 Next > Last »

Discussion Threads

Sort Threads   Create Date / Rating Title / Poster Last Post Comments Views
08/21/2013 8:37 PM Egypt Map from 1960
by HiTekRedNek
Last post: 08/31/2026 7:06 AM
by JCHILL
 14 1428
08/26/2026 4:02 AM Sharing a Feed
by yesyen
Last post: 08/29/2026 11:07 AM
by Deefburger
 5 69
08/25/2026 1:08 PM Hacked??
by Lehman57
Last post: 08/26/2026 12:51 PM
by Lehman57
 4 26
04/20/2018 9:16 AM Is the Universe a Brain?
by HiTekRedNek
Last post: 08/22/2026 1:39 PM
by not so smart
 25 377
08/10/2026 7:12 AM Choosing the Right Stainless Steel Tube Fittings for Instrumentation
by kailashmittal
Last post: 08/20/2026 11:26 PM
by lili
 3 60
10/16/2025 3:20 AM Why Engineers Are Choosing Aluminum Profiles More Than Ever
by Anonymous Poster
Last post: 08/13/2026 11:09 AM
by KRC
 6 131
08/12/2026 10:28 PM Turning Industrial Waste into High-Value Green Building Materials!
by Evelyn Li
Last post: 08/12/2026 10:28 PM
by Evelyn Li
 0 37
08/11/2026 8:28 AM How Should SS 316 Capillary Tubing Be Specified for Instrumentation?
by kailashmittal
Last post: 08/11/2026 8:28 AM
by kailashmittal
 0 35
08/10/2026 10:35 AM Socrates Meets the Age of the Internet
by redfred
Last post: 08/10/2026 1:47 PM
by Troy36
 2 63
06/17/2026 2:52 PM At What Stage Are Most Product Reliability Problems Introduced?
by Ahmad Faraz
Last post: 08/08/2026 2:17 AM
by GM1964
 5 113
04/12/2026 8:04 AM A Universe of Bubbles
by HiTekRedNek
Last post: 08/07/2026 11:53 AM
by Haymaker
 10 289
02/18/2026 4:29 PM Imagine This
by HiTekRedNek
Last post: 08/05/2026 10:18 AM
by Deefburger
 14 340
07/15/2026 11:23 AM Piping Max Design Temperature Based on Ambient Conditions
by Screedie
Last post: 08/05/2026 3:34 AM
by Screedie
 2 146
07/08/2026 12:24 AM What Usually Makes a PUE Below 1.2 Difficult to Achieve?
by gbcengineers
Last post: 08/02/2026 3:14 AM
by Andy Frew
 1 78
10/28/2009 11:56 AM Tension Springs and Measurements
by Anonymous Poster
Last post: 07/31/2026 1:55 PM
by HomeDIYer1201
 21 276
09/19/2006 2:08 PM What odds and wager would make betting your own life acceptable?
by STL Engineer
Last post: 07/22/2026 8:55 AM
by Darville40
 30 394
07/07/2025 5:41 PM Warning for Flood Prone Areas
by HiTekRedNek
Last post: 07/21/2026 4:27 AM
by Nigh
 66 668
07/17/2026 5:55 AM How Much Structural Headroom Should Colocation Data Centers Allow for AI?
by gbcengineers
Last post: 07/17/2026 5:55 AM
by gbcengineers
 0 84
08/27/2015 2:26 AM Twin Disc EC200
by Abeniko
Last post: 07/10/2026 2:05 PM
by Doorman
 27 1693
10/20/2016 8:27 AM More Evidence For Planet 9
by Bayes
Last post: 07/10/2026 12:09 AM
by Gavilan
 79 1199
01/28/2026 9:28 AM Which One is the Most Efficient?
by Trees4Life
Last post: 07/09/2026 11:41 PM
by Gavilan
 52 828
01/24/2025 10:22 PM Binary Bio-Weapons
by Gavilan
Last post: 07/07/2026 1:47 AM
by Gavilan
 15 608
06/11/2026 9:47 AM More on AI
by Lehman57
Last post: 07/01/2026 11:46 AM
by duikerbok
 9 309
07/01/2026 7:32 AM API 579 Part 4 GML Assessment - Level 1 vs Level 2: When to Move Up
by ShantanuANZ
Last post: 07/01/2026 7:32 AM
by ShantanuANZ
 0 38
07/01/2026 1:48 AM Important Things About 440A Round Bars Stainless Steel in the Real World
by kailashmittal
Last post: 07/01/2026 1:48 AM
by kailashmittal
 0 42
06/19/2026 6:51 AM Joining this Professional Forum
by yifan
Last post: 06/30/2026 10:20 AM
by gideon
 2 69
04/29/2026 8:54 PM The Crystals that Wiped Out a Medication
by Rixter
Last post: 06/28/2026 8:10 AM
by Haymaker
 6 425
06/24/2026 4:24 PM How BIM Coordination Services Are Reducing Rework and Improving Project Delivery
by trinityprojects
Last post: 06/24/2026 4:24 PM
by trinityprojects
 0 26
06/23/2026 12:26 AM ASME SA387 Grade 12 Plate for Elevated-Temperature Pressure Equipment Thread Body: In Several Pressure Vessel and Heat Exchanger Projects, Selecting Materials that can Maintain Strength and Resist
by kailashmittal
Last post: 06/23/2026 12:26 AM
by kailashmittal
 0 82
03/08/2026 6:06 AM AI/Copilot Interference with Search Questions
by Just an Engineer
Last post: 06/22/2026 2:18 PM
by Lehman57
 11 437
04/05/2026 6:21 AM Pressed for Food
by HiTekRedNek
Last post: 06/22/2026 8:24 AM
by fzitta
 21 357
05/07/2026 7:06 AM Stuck PVC Valve
by HiTekRedNek
Last post: 06/18/2026 11:27 PM
by steve45
 15 391
03/23/2026 4:01 AM What Really Defines a “Good” Resistor in Precision Current Sensing Applications?
by Resi
Last post: 06/17/2026 4:25 PM
by Stef
 4 200
06/17/2026 4:19 AM Shell Distortion FFS: How Nonlinear FEA Resolves Code Ambiguity for Out-of-Round Vessels
by ShantanuANZ
Last post: 06/17/2026 4:19 AM
by ShantanuANZ
 0 27
02/03/2025 7:33 AM How Birds Fly Over the Himalayas
by HiTekRedNek
Last post: 06/11/2026 8:15 PM
by Rixter
 6 272
11/04/2024 12:19 PM Eroda Spark Eroder Machine
by Johan van Niekerk
Last post: 06/09/2026 10:28 AM
by naddy1974
 16 213
03/26/2020 2:49 PM The Ultimate Weapon in the Fight Against the Covid19 Virus
by SolarEagle
Last post: 06/04/2026 2:54 AM
by iplwin
 444 2814
06/02/2026 4:24 AM Statimeter M5537 for ISO pumps
by Leyla Alizade
Last post: 06/03/2026 1:27 AM
by Leyla Alizade
 5 110
02/20/2026 5:15 AM 10,000 Year Memory Storage
by HiTekRedNek
Last post: 05/31/2026 12:47 PM
by Doorman
 13 296
04/23/2026 7:02 AM Calculate BTU
by HiTekRedNek
Last post: 05/25/2026 5:17 AM
by Codemaster
 7 239
11/04/2019 11:36 AM KW to Temperature (Degree F)
by wreckless192
Last post: 05/20/2026 7:24 PM
by dkwarner
 24 386
12/23/2025 3:05 PM A Built-in Generator and Starter on the Engine Flywheel
by HiTekRedNek
Last post: 05/13/2026 5:30 AM
by monaca
 40 675
05/02/2026 1:03 PM Yamaha Organ
by Labyguy
Last post: 05/05/2026 3:34 PM
by rwilliams
 9 298
04/30/2026 2:59 AM Stability of Fluidized Beds at <50g Batch Sizes
by Mahargha
Last post: 04/30/2026 2:59 AM
by Mahargha
 0 60
03/28/2026 8:23 AM Remote Control Lawnmower
by HiTekRedNek
Last post: 04/29/2026 9:52 AM
by Doorman
 20 364
04/29/2026 8:15 AM How to Make a Link Linkable?
by Anonymous Poster
Last post: 04/29/2026 8:15 AM
by Anonymous Poster
 0 35
09/25/2022 7:51 AM What were Roman Dodecahedrons used for?
by Randall
Last post: 04/29/2026 4:53 AM
by beancycle
 32 445
03/30/2026 9:53 AM Bent Trees
by HiTekRedNek
Last post: 04/27/2026 7:40 AM
by marcot
 7 296
05/19/2020 7:33 AM Charging at a Distance While in Motion
by HiTekRedNek
Last post: 04/25/2026 7:12 PM
by HiTekRedNek
 58 552
04/14/2026 10:00 AM The Gold Fish Age
by HiTekRedNek
Last post: 04/25/2026 9:28 AM
by truth is not a compromise
 15 198
11/27/2010 4:53 AM An Infinity of Infinities
by Anonymous Poster
Last post: 04/23/2026 8:17 AM
by beancycle
 57 792
04/20/2026 5:25 PM Calls
by HiTekRedNek
Last post: 04/22/2026 7:14 PM
by HiTekRedNek
 11 203
04/14/2026 6:50 PM 56 V DC to 48 V DC Converter
by HiTekRedNek
Last post: 04/18/2026 10:49 PM
by rwilliams
 24 342
04/11/2026 3:59 AM Definition of Information
by HiTekRedNek
Last post: 04/14/2026 5:09 PM
by truth is not a compromise
 8 171
02/14/2024 1:35 PM Brake Light Wiring Diagram
by HiTekRedNek
Last post: 04/10/2026 2:43 PM
by HiTekRedNek
 12 449
08/19/2024 1:47 AM WatchPower Password Reset
by abotha
Last post: 04/08/2026 8:41 AM
by Anonymous Poster
 7 342
04/03/2026 3:06 PM Part for Drain Tube
by HiTekRedNek
Last post: 04/05/2026 4:26 PM
by HiTekRedNek
 10 125
06/05/2025 11:46 AM No Diet Cites the Precise Foods Needed to Reduce Weight
by Trees4Life
Last post: 04/03/2026 7:02 AM
by philking309
 9 248
04/05/2013 5:30 PM Is Time an Illusion?
by StandardsGuy
Last post: 04/03/2026 6:40 AM
by HiTekRedNek
 137 1209
03/24/2026 7:46 AM Tommey Reed Richard Clem Engine Update
by Tommey Reed
Last post: 03/27/2026 10:11 PM
by Tommey Reed
 2 177
11/16/2021 9:35 PM Recycling Plastic
by mike k
Last post: 03/24/2026 12:13 PM
by GM1964
 31 413
03/17/2026 7:01 AM Ancient Maps
by HiTekRedNek
Last post: 03/22/2026 5:56 PM
by chrisg288
 31 299
02/16/2026 11:51 AM Measuring Light Speed Without a Clock
by Haymaker
Last post: 03/17/2026 9:28 PM
by Haymaker
 28 313
03/15/2026 1:45 AM Why Network Traffic Analysis Is Challenging for Cisco 300-220 (CBRTHD) Exam Candidates
by jamesshaw
Last post: 03/15/2026 1:45 AM
by jamesshaw
 0 70
02/28/2014 10:25 PM A Modern PID Controller for an Old Electric House Furnace
by Gavilan
Last post: 03/11/2026 7:16 PM
by Gavilan
 18 550
03/09/2026 10:24 AM Test Quantity of Diamagnetic, Paramagnetic Particles in a Viscous Moving Liquid
by HiTekRedNek
Last post: 03/09/2026 5:19 PM
by HiTekRedNek
 3 136
02/26/2026 10:44 PM Has Anyone Used Keyence SJ-F700 Static Eliminator on Laminator Machines?
by Signode
Last post: 03/03/2026 8:42 AM
by Ramanan Viswanathan
 3 119
02/28/2026 7:09 AM UHMW for Inserts in Gasoline Engine?
by HiTekRedNek
Last post: 03/01/2026 10:15 AM
by Rixter
 2 209
02/19/2026 10:53 AM Pilot With No Arms
by steve45
Last post: 02/27/2026 9:05 PM
by Rixter
 5 206
08/19/2008 7:51 PM What's Behind Door Number Three?
by Anonymous Poster
Last post: 02/26/2026 12:00 PM
by Codemaster
 22 427
02/22/2026 11:14 AM Is the Electron Made of Folded Light (Gamma Rays)?
by Rixter
Last post: 02/25/2026 5:10 PM
by Haymaker
 4 188
07/19/2020 7:29 PM 670 nm Light Source
by HiTekRedNek
Last post: 02/24/2026 2:39 PM
by Karen3
 43 957
01/24/2026 6:55 AM A Log Jam Unstick Trick
by hitekrednek2
Last post: 02/23/2026 4:32 AM
by Stef
 3 327
11/25/2010 7:59 AM EARTH BAG HOMES
by Common cents
Last post: 02/11/2026 12:28 PM
by PWSlack
 25 262
11/24/2010 8:10 AM Accurate Measurement of a Solder Iron Tip?
by kfitch7275
Last post: 02/11/2026 12:25 PM
by Anonymous Poster
 16 1112
11/24/2010 7:09 AM Retain Water
by Johan Reji
Last post: 02/11/2026 12:21 PM
by PWSlack
 6 200
10/15/2025 11:25 PM How to Remove Boron from Drilling Water Using Electrodialysis
by Bonatech
Last post: 02/11/2026 12:14 PM
by PWSlack
 2 67
01/10/2026 1:57 PM How Deep is a Black Hole?
by hitekrednek2
Last post: 02/11/2026 12:08 PM
by PWSlack
 14 444
11/05/2025 11:36 AM Analysis Paralysis
by Doorman
Last post: 02/10/2026 6:15 PM
by phoenix911
 11 270
05/18/2018 3:20 PM Statistics Aid
by Dr. Harry
Last post: 02/02/2026 2:53 PM
by phoenix911
 7 165
05/31/2020 3:16 AM Mail Charges in USA
by Stef
Last post: 02/02/2026 7:00 AM
by lyn
 21 323
01/20/2026 10:43 AM Re-Crimping Electrical Terminals
by 69-er
Last post: 01/24/2026 7:19 PM
by Stef
 17 292
04/27/2022 3:53 AM The Duralast Battery Problem
by kynix
Last post: 01/14/2026 10:07 AM
by Koos03
 6 300
10/02/2018 12:29 PM Shumacher Battery Charger Schematic
by HiTekRedNek
Last post: 01/12/2026 10:57 AM
by vsar
 11 4365
12/23/2025 9:53 AM Anti-static Space Suits
by HiTekRedNek
Last post: 01/10/2026 2:52 PM
by Doorman
 7 235
12/22/2025 2:31 PM British Canal Sinkhole?
by Haymaker
Last post: 01/07/2026 9:19 PM
by Lehman57
 7 282
01/06/2026 6:40 AM Log In Issue
by Codemaster
Last post: 01/07/2026 9:00 AM
by JWthetech
 6 106
09/21/2025 7:54 AM Using Attic Heat to Cool House
by HiTekRedNek
Last post: 01/06/2026 12:26 AM
by GM1964
 20 322
05/31/2018 3:28 PM Three Seasons Room Roof Suggestions
by frankd20
Last post: 01/04/2026 3:34 AM
by GM1964
 16 477
09/09/2025 9:47 PM Hello from Germany – Excited to Join CR4 Community!
by Anonymous Poster
Last post: 12/18/2025 12:07 PM
by Codemaster
 8 131
03/27/2024 8:25 AM FSK Bridge Collapse
by HiTekRedNek
Last post: 12/14/2025 8:06 PM
by Lehman57
 107 1144
12/11/2025 7:14 PM Transformer Search
by HiTekRedNek
Last post: 12/11/2025 10:29 PM
by Brave Sir Robin
 1 174
12/03/2025 9:03 PM Is There More to Electromagnetics than Maxwell's Equations?
by Rixter
Last post: 12/11/2025 7:59 PM
by Rixter
 5 250
10/15/2025 11:57 AM Homogenized Antifreeze?
by HiTekRedNek
Last post: 12/11/2025 10:58 AM
by Deefburger
 25 223
11/06/2025 9:11 AM TPS (Tire Pressure Sensor)
by HiTekRedNek
Last post: 12/10/2025 1:43 AM
by rwilliams
 33 411
10/27/2025 8:40 PM R3119N090A-TR-FE Voltage Detector
by Anonymous Poster
Last post: 12/06/2025 12:01 AM
by rwilliams
 4 175
06/28/2018 12:00 AM Water Heater Installation Mini
by SolarEagle
Last post: 12/04/2025 6:06 PM
by phoenix911
 22 308
12/04/2025 4:10 PM EN590, Mazut, D2, D6, Jet A1, LPG, LNG, Crude Oil
by Sun3623
Last post: 12/04/2025 4:10 PM
by Sun3623
 0 41
10/17/2025 8:24 PM 1993 c3500 454 Motor Won't Crank Over When Warm
by Bobosan
Last post: 12/03/2025 7:40 AM
by DennisWebb
 42 528
11/14/2025 2:17 AM Thinking About Solar Installations in Dubai
by dxbmarket
Last post: 12/03/2025 4:43 AM
by nosweatsolar
 1 113
Page 1 of 166: « First 1 2 3 Next > Last »
To post to this forum you must register.

Display Options
Showing threads 1 to 100 of 16598
Sorted By Sorted By Sort Order Sort Order
From The From The
Post Type Post Type
Tags (comma-delimited) (comma-delimited)
Show Threads

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
General Discussion:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (231 right now)
Show Members
Advertisement