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09/14/2024 9:17 AM O2 Apocalypse
by BillLee
Last post: 09/18/2024 11:33 AM
by SolarEagle
 14 332
06/13/2021 3:48 AM Would You Sell a Car You Only Drove 600+ Miles?
by Autobroker
Last post: 09/12/2024 2:59 PM
by Autobroker
 73 668
09/05/2024 11:00 AM Interesting Puzzle
by Rixter
Last post: 09/12/2024 10:26 AM
by Randall
 16 398
03/05/2011 12:27 AM Design of Vertical Falling Film Evaporator
by Anonymous Poster
Last post: 09/10/2024 6:46 AM
by PWSlack
 16 1689
02/18/2010 11:41 PM Specific Heat of Furnace Oil
by Anonymous Poster
Last post: 09/10/2024 6:31 AM
by PWSlack
 12 1273
08/19/2024 6:19 AM Toroid Propeller
by HiTekRedNek
Last post: 09/06/2024 12:44 PM
by Lehman57
 30 443
08/21/2024 12:01 PM Can Large Language Models (LLMs) Understand?
by Rixter
Last post: 09/04/2024 10:43 AM
by SolarEagle
 13 303
10/29/2007 4:37 PM Solder Leads To Graphite For Conductivity Sensors
by studatnu
Last post: 09/03/2024 4:31 AM
by PWSlack
 9 710
08/19/2024 5:54 AM Killer Whales Playing with Food
by HiTekRedNek
Last post: 08/27/2024 5:11 AM
by truth is not a compromise
 13 303
08/14/2024 9:06 AM Testing a New UHDPE Netting
by netmaker
Last post: 08/23/2024 7:58 PM
by HiTekRedNek
 8 217
07/23/2024 12:58 PM A Major Milestone: Global Climate Pollution May Have Just Peaked
by lyn
Last post: 08/23/2024 7:52 PM
by phoenix911
 24 402
08/06/2011 10:47 PM Rust Remover
by NSS
Last post: 08/23/2024 10:16 AM
by PWSlack
 94 881
08/05/2024 4:30 PM Space Time is Like a Liquid
by HiTekRedNek
Last post: 08/22/2024 9:04 PM
by artsmith
 21 277
08/16/2024 7:22 PM Water vs Wind Dynamics
by artsmith
Last post: 08/22/2024 8:34 PM
by artsmith
 11 260
09/22/2008 5:55 PM Over what distance can a pump suck?
by GeoffP
Last post: 08/22/2024 7:42 AM
by PWSlack
 58 2555
05/22/2009 4:54 PM How Mature is Digital Camera Technology?
by Transcendian
Last post: 08/22/2024 5:31 AM
by PWSlack
 7 256
05/04/2012 10:24 AM What are the Worst Sources of Pollution?
by ronwagn
Last post: 08/21/2024 10:52 PM
by truth is not a compromise
 64 773
09/15/2010 5:40 AM Non Rated Spade Blind
by Anonymous Poster
Last post: 08/21/2024 10:27 AM
by PWSlack
 3 176
08/12/2024 12:08 AM Best Glue to Hold in Marine Environment
by netmaker
Last post: 08/21/2024 7:40 AM
by PWSlack
 37 337
08/12/2024 8:31 AM Slow Firestick
by HiTekRedNek
Last post: 08/19/2024 2:13 PM
by HiTekRedNek
 12 224
08/04/2024 7:58 AM Power Consumption of Motor Starters when Holding (Energized)
by HiTekRedNek
Last post: 08/19/2024 8:22 AM
by HiTekRedNek
 19 204
08/11/2024 4:43 PM Dog and Rabbit Problem
by Codemaster
Last post: 08/19/2024 6:02 AM
by Codemaster
 27 390
08/13/2024 1:09 PM Strain Gauges in Truck Scales
by HiTekRedNek
Last post: 08/17/2024 11:04 AM
by HiTekRedNek
 22 247
01/15/2007 1:59 PM Vegetable Oil and Home Heating
by frankd20
Last post: 08/14/2024 5:31 AM
by PWSlack
 55 8054
04/16/2012 4:05 PM Why do Americans Drive Front First into Their Driveways?
by passingtongreen
Last post: 08/12/2024 7:31 AM
by PWSlack
 79 1726
08/10/2024 5:54 PM Obsolete Stores for Solar Cells
by HiTekRedNek
Last post: 08/11/2024 11:39 PM
by Lehman57
 7 133
07/28/2024 10:13 PM Nature Seeks a Balance
by HiTekRedNek
Last post: 08/08/2024 7:13 AM
by HiTekRedNek
 12 208
07/31/2024 12:10 PM Worthwhile Gadgets
by Doorman
Last post: 08/07/2024 3:22 PM
by phoenix911
 8 171
08/06/2008 4:34 AM Nm3/hr to M3/hr .
by Anonymous Poster
Last post: 08/07/2024 7:44 AM
by Anonymous Poster
 13 26533
04/16/2024 12:12 PM Few Have Knowledge They Can Apply or Even Understand
by DaveB
Last post: 08/05/2024 11:26 AM
by phoenix911
 21 303
10/11/2007 10:26 AM Discrimination in recruitment processes
by gussosa
Last post: 08/03/2024 11:04 AM
by phoenix911
 34 345
07/19/2024 7:05 AM Staggered Implementation of Software Updates
by Randall
Last post: 07/28/2024 10:21 PM
by artsmith
 11 199
10/14/2017 4:41 PM Stretching A Wire
by ronseto
Last post: 07/26/2024 7:10 AM
by PWSlack
 38 853
03/21/2007 9:03 AM Elevator Shaft Water Removal
by N5EBA
Last post: 07/24/2024 9:31 AM
by PWSlack
 17 1066
07/07/2024 9:09 PM Double Slit Experiment in a Vacuum?
by HiTekRedNek
Last post: 07/21/2024 9:34 AM
by HiTekRedNek
 11 220
07/20/2024 8:12 AM Repulsive Casimir Effect
by HiTekRedNek
Last post: 07/20/2024 9:06 AM
by Rixter
 1 177
05/23/2008 5:50 AM Hats On A Death Row
by Optimusprime
Last post: 07/16/2024 10:18 AM
by Randall
 35 849
08/23/2018 7:39 AM Cast Iron Manhole Rusted to Frame
by user-deleted-1105
Last post: 07/12/2024 10:31 AM
by Randall
 83 1545
05/28/2010 5:59 PM Hot Water Cylinder Differentiation
by Anonymous Poster
Last post: 07/10/2024 6:49 AM
by PWSlack
 5 116
12/01/2009 5:34 AM Gas Turbine Lubrication Oil and its Cooling System
by christopher
Last post: 07/08/2024 11:34 AM
by PWSlack
 3 323
03/23/2023 6:21 PM Cast iron bathtubs…
by phoenix911
Last post: 07/07/2024 8:31 PM
by HiTekRedNek
 26 456
05/19/2020 8:22 PM Chess Practice at School
by SolarEagle
Last post: 07/07/2024 7:22 PM
by Kris
 36 440
07/04/2024 8:47 AM Red Shift
by Haymaker
Last post: 07/04/2024 7:17 PM
by Haymaker
 6 189
05/27/2008 6:08 PM Mild steel corrosion and caustic
by aussiedownunder
Last post: 07/04/2024 5:10 AM
by PWSlack
 8 679
06/28/2024 8:47 AM Why a New Password for Every Time I Log In?
by HiTekRedNek
Last post: 07/01/2024 4:54 AM
by PWSlack
 8 164
06/12/2024 9:10 AM Are Space and Time Inseparable?
by hitekrednek2
Last post: 06/26/2024 10:03 AM
by Haymaker
 14 300
06/21/2024 6:59 AM Unable to Post to CR4 with Pictures
by BruceFlorida
Last post: 06/26/2024 9:34 AM
by gutmonarch
 23 178
06/18/2024 9:37 AM Is "OFF" Really "OFF"?
by HiTekRedNek
Last post: 06/26/2024 9:32 AM
by gutmonarch
 8 311
06/21/2024 11:09 PM Trying to Identify and Source Window Parts
by BruceFlorida
Last post: 06/26/2024 6:45 AM
by BruceFlorida
 15 241
01/25/2023 10:40 PM Source of Energy
by Lehman57
Last post: 06/22/2024 2:39 AM
by Gavilan
 55 947
04/23/2021 4:40 PM An Overhaul of the Electrical Grid Required for EV
by HiTekRedNek
Last post: 06/21/2024 10:44 AM
by WJMFIRE
 47 630
09/12/2023 8:33 AM DC Charger Controller for CCS1
by marcot
Last post: 06/19/2024 1:11 AM
by rwilliams
 7 184
06/09/2024 3:19 PM Light Driven Water Evaporation
by Rixter
Last post: 06/14/2024 12:46 PM
by Rixter
 14 343
05/21/2024 10:33 AM Thunderstorm Generator
by HiTekRedNek
Last post: 06/01/2024 6:50 PM
by lyn
 32 889
05/23/2024 7:26 PM Cooling a Workshop
by sqyuma
Last post: 05/29/2024 9:25 AM
by HiTekRedNek
 8 192
05/18/2024 7:55 AM Radio Programs from the 1940s Received on Modern Equipment
by HiTekRedNek
Last post: 05/29/2024 7:15 AM
by PWSlack
 11 380
05/23/2024 7:53 PM Image Posting Issue
by sqyuma
Last post: 05/25/2024 12:37 PM
by SolarEagle
 9 520
05/14/2024 9:30 AM Geo Storm Affects Farmers' Tractors
by HiTekRedNek
Last post: 05/22/2024 7:05 AM
by HiTekRedNek
 22 294
04/28/2024 8:04 AM How to Fix Unemployment
by HiTekRedNek
Last post: 05/18/2024 11:49 AM
by agua_doc
 16 389
04/18/2024 2:30 AM Determinant Identity
by kasharma
Last post: 05/18/2024 3:37 AM
by Randall
 3 203
05/10/2024 7:13 PM Special Formula Plastic Film
by NSS
Last post: 05/15/2024 8:23 AM
by HiTekRedNek
 13 210
05/10/2024 12:51 PM Aurora this Weekend
by Rixter
Last post: 05/15/2024 8:10 AM
by Rixter
 7 103
04/28/2024 10:35 AM Why Don't Advertisers Understand How to Present Filters?
by Randall
Last post: 05/11/2024 2:08 AM
by GM1964
 9 260
04/29/2024 4:12 PM Will Cut Groove Maintain its Shape After PVC Board is Bent?
by Trees4Life
Last post: 05/07/2024 5:01 PM
by Rixter
 19 318
05/03/2024 7:17 AM Sonar Image of the Adella Shores Shipwreck
by BruceFlorida
Last post: 05/04/2024 8:57 AM
by Rixter
 7 284
04/25/2024 4:24 AM Solar Tracking for Solar Cookers and Solar Panels, Project Update
by gaiatechnician
Last post: 04/30/2024 4:11 AM
by Nigh
 9 316
04/21/2023 10:27 AM Relay lens choice
by Nigh
Last post: 04/29/2024 11:42 AM
by Randall
 16 322
04/17/2024 9:04 AM Interesting Puzzle
by Rixter
Last post: 04/28/2024 9:02 PM
by dkwarner
 29 413
04/10/2024 3:47 PM Mt. Etna Blowing Smoke Rings
by Rixter
Last post: 04/27/2024 9:07 AM
by phoenix911
 14 337
06/12/2007 8:52 AM Multi hole orifice plate calculations
by amsats
Last post: 04/24/2024 9:31 AM
by Codemaster
 18 5231
07/21/2008 9:13 AM how to design a water level indicator using float?
by charlesdenieles
Last post: 04/23/2024 7:56 AM
by Anonymous Poster
 9 661
07/02/2016 9:24 AM No Back Pressure of Purifier Model Type Osc 5-02-066
by jm gamposilao
Last post: 04/23/2024 4:11 AM
by PWSlack
 7 562
04/24/2007 2:28 PM Universcale
by Mousejockey
Last post: 04/19/2024 7:10 AM
by PWSlack
 3 337
04/06/2024 11:17 AM Cosmic Rays Affecting Cloud Formation?
by HiTekRedNek
Last post: 04/17/2024 8:42 AM
by HiTekRedNek
 11 243
03/29/2011 9:24 AM Helium balloons and 1 tonne.
by Squeakybrain
Last post: 04/12/2024 9:36 AM
by PWSlack
 18 313
04/02/2024 3:56 PM Coating to Improve Tensile Strength in Concrete Surface
by sqyuma
Last post: 04/12/2024 4:46 AM
by HiTekRedNek
 15 299
04/05/2024 7:57 AM Interesting Rocket Launch this Morning
by BruceFlorida
Last post: 04/10/2024 4:31 PM
by Brave Sir Robin
 3 260
03/18/2024 11:42 AM Reduce CO2, Save Millions on Road Maintenance
by HiTekRedNek
Last post: 04/02/2024 4:03 PM
by HiTekRedNek
 37 340
03/10/2024 5:19 PM The Feynman Sprinkler Problem
by Rixter
Last post: 03/18/2024 1:17 PM
by dkwarner
 36 417
03/14/2024 10:23 AM NH3/CH4
by NSS
Last post: 03/14/2024 1:37 PM
by Rixter
 4 262
02/26/2024 11:14 AM Interesting Phenomenon
by Rixter
Last post: 03/10/2024 10:13 AM
by HiTekRedNek
 8 249
02/28/2024 9:30 AM Old Habits
by HiTekRedNek
Last post: 03/10/2024 9:51 AM
by HiTekRedNek
 8 312
02/29/2024 9:49 AM Vitrified Stone Walls
by HiTekRedNek
Last post: 03/09/2024 11:48 AM
by HiTekRedNek
 13 312
02/28/2024 9:20 AM Fire Ant Colony Destruction
by HiTekRedNek
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by agua_doc
 17 381
09/05/2023 8:47 AM Trying to Source Auto Parts
by Randall
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by SolarEagle
 49 442
03/04/2024 10:02 PM Building a Drone That can Follow and Film an F1 Race
by SolarEagle
Last post: 03/06/2024 8:50 AM
by MikeMack747
 3 180
03/02/2024 8:09 PM Why Do Bugs Fly into Lights?
by Rixter
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by SolarEagle
 5 267
02/21/2024 2:36 PM Solving System of Non-linear Equations
by JBTardis
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by engineertony
 54 303
02/24/2024 6:32 AM Radio Waves and Smoke Signals
by HiTekRedNek
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by HiTekRedNek
 15 238
02/19/2024 2:21 PM Race Cars with No Drivers
by HiTekRedNek
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by HiTekRedNek
 36 267
01/29/2013 7:02 PM Is this Considered Located in a Hazardous Area?
by wheel
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by HiTekRedNek
 60 1255
02/24/2024 6:40 AM Microplastics in the 1700s?
by HiTekRedNek
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 13 419
01/23/2024 11:02 AM Mirror Focus?
by HiTekRedNek
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by Lehman57
 38 519
02/22/2024 7:35 AM Rate
by JWthetech
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by JWthetech
 6 112
09/18/2008 5:48 AM Testing Methods & Standards for Brass Spring Check Valve??
by jonesliu
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by PWSlack
 11 211
08/23/2007 8:16 PM Level detector
by Juan Carlos XX
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by PWSlack
 3 199
02/05/2024 7:56 AM Delay "Off" Timer on Fridge Light
by Randall
Last post: 02/22/2024 6:02 AM
by Doorman
 38 443
07/07/2014 11:15 PM Contact
by cyclo
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by PWSlack
 8 221
09/30/2011 4:21 PM Projecting On Waterfall
by ky
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08/19/2008 11:03 AM Calculating Vehicle and Trailer Turning Radius
by Divers
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by Anonymous Poster
 13 3326
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