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10/28/2020 9:28 AM An Engineering Perspective
by Stephen Archer
Last post: 10/30/2020 2:57 PM
by phoenix911
 18 328
10/28/2020 2:26 PM Hyperspectral Camera
by Rixter
Last post: 10/30/2020 6:55 AM
by zesid
 4 165
10/28/2020 2:14 PM Hubble's Constant
by HiTekRedNek
Last post: 10/29/2020 10:47 AM
by HiTekRedNek
 8 209
10/19/2020 2:17 PM Flight Improvement Suggestions Requested for Awesome Giant Hand Launched Glider
by wrenchtwirler
Last post: 10/28/2020 10:11 PM
by SolarEagle
 17 392
10/25/2020 8:04 AM Spring Design CAD
by Randall
Last post: 10/26/2020 7:39 AM
by Randall
 6 193
10/17/2020 9:48 PM Near Satellite Collision Last Night
by Rixter
Last post: 10/23/2020 8:24 PM
by Rixter
 25 369
10/19/2020 11:08 PM Now That is Awesome
by SolarEagle
Last post: 10/23/2020 6:48 PM
by SolarEagle
 15 389
10/19/2020 2:25 PM Sealing Machine
by dgoldwaters
Last post: 10/21/2020 7:56 PM
by SolarEagle
 21 183
10/10/2020 3:03 PM Tesla Spaceman Passes Mars
by SolarEagle
Last post: 10/21/2020 11:11 AM
by harmonmonic
 3 137
09/27/2020 9:02 PM Does Consciousness Affect Quantum Results?
by HiTekRedNek
Last post: 10/20/2020 10:00 PM
by StandardsGuy
 29 223
10/06/2020 1:54 AM Cavalier or Tesla?
by HiTekRedNek
Last post: 10/20/2020 7:12 PM
by SolarEagle
 13 224
10/14/2020 7:29 AM Carrying an Ember in a Horn
by HiTekRedNek
Last post: 10/19/2020 11:13 AM
by HiTekRedNek
 10 208
10/14/2020 9:23 PM Room Temperature Superconductor Material
by SolarEagle
Last post: 10/16/2020 8:24 PM
by dkwarner
 14 243
10/14/2020 12:43 AM Gasoline to Natural Gas Conversion for Briggs and Stratton
by netmaker
Last post: 10/16/2020 4:04 PM
by SolarEagle
 15 393
10/13/2020 1:25 PM Levitating Liquid Pendulum
by Rixter
Last post: 10/16/2020 4:58 AM
by SolarEagle
 15 387
01/24/2008 12:07 PM UV-c sterilizer
by Sisira
Last post: 10/15/2020 3:46 PM
by SolarEagle
 6 207
08/23/2020 10:08 AM What is so Special About 4.669?
by HiTekRedNek
Last post: 10/14/2020 9:02 AM
by HiTekRedNek
 28 643
10/07/2020 7:49 PM Helium Kills iPhones
by Rixter
Last post: 10/13/2020 10:50 AM
by redfred
 24 714
10/10/2020 5:17 PM Where is This Place?
by SolarEagle
Last post: 10/12/2020 10:33 PM
by SolarEagle
 13 241
10/10/2020 7:40 PM The Strange, Beautiful and Somewhat Disgusting World of Nudibranchs
by SolarEagle
Last post: 10/12/2020 6:37 PM
by pfridays
 3 340
10/12/2020 1:49 AM 1959 vs 2009 Chevy Impala Head on Crash
by SolarEagle
Last post: 10/12/2020 4:26 PM
by BruceFlorida
 8 260
05/25/2005 10:02 AM SAG vs. Video Games
by BRodda
Last post: 10/12/2020 3:29 PM
by Joana
 24 250
09/17/2020 1:55 AM A Question of Speed
by SolarEagle
Last post: 10/11/2020 10:52 PM
by Autobroker
 80 633
10/09/2020 9:13 PM Changing Atmospheric Partial Pressures and Bio-diffusion.
by Gavilan
Last post: 10/10/2020 11:40 PM
by Stef
 7 119
10/07/2020 12:42 AM Demethanizer Tower Delivery
by SolarEagle
Last post: 10/09/2020 9:15 AM
by PWSlack
 4 131
10/03/2020 8:21 PM Free Energy from Graphene?
by Rixter
Last post: 10/07/2020 10:13 PM
by Rixter
 15 268
10/02/2020 3:36 AM Diesel Generator Under the Rain
by dgoldwaters
Last post: 10/07/2020 6:43 AM
by dgoldwaters
 27 389
10/06/2020 1:40 AM Is Nuclear Energy a Waste of Time?
by HiTekRedNek
Last post: 10/06/2020 12:06 PM
by PWSlack
 1 57
09/27/2020 10:56 PM Nuclear Waste
by SolarEagle
Last post: 10/05/2020 10:03 AM
by redfred
 32 253
10/03/2020 10:09 PM The Problem With Solar Voltaic Cells
by SolarEagle
Last post: 10/04/2020 1:48 PM
by SolarEagle
 3 179
09/28/2020 2:11 AM Deep Sea Creatures
by SolarEagle
Last post: 09/30/2020 5:13 AM
by SolarEagle
 10 215
09/26/2020 3:44 AM Phalanx System and Others
by SolarEagle
Last post: 09/29/2020 12:59 PM
by rashavarek
 30 335
09/27/2020 12:32 PM Is Dark Matter Black Holes?
by Rixter
Last post: 09/29/2020 9:54 AM
by SolarEagle
 17 342
09/25/2020 1:02 PM Shape of Electrolytic Capacitors
by HiTekRedNek
Last post: 09/27/2020 5:56 PM
by thewildotter
 28 463
09/15/2020 4:04 PM What Causes this Ring of Dead Grass Around a Tree?
by phoenix911
Last post: 09/27/2020 10:19 AM
by phoenix911
 52 1157
09/24/2020 7:50 AM Electricty Generated by Slight Wind
by HiTekRedNek
Last post: 09/27/2020 7:15 AM
by HiTekRedNek
 15 200
01/02/2009 1:58 PM Wikipedia Asks for Help
by chrisg288
Last post: 09/26/2020 5:15 AM
by dhayanandhan.s
 18 247
09/23/2020 6:24 PM Reversed Tear Drop
by GJM
Last post: 09/25/2020 1:02 PM
by JRiversW
 21 407
09/14/2020 3:01 PM Million Mile Battery
by ronseto
Last post: 09/23/2020 7:47 PM
by SolarEagle
 17 293
09/17/2020 10:16 AM Neutral Wire Having Current
by dgoldwaters
Last post: 09/22/2020 10:27 AM
by Crabtree
 17 275
05/11/2017 1:46 PM Have Any of You Been Watching the Show Genius?
by frankd20
Last post: 09/20/2020 11:58 PM
by SolarEagle
 15 363
07/19/2020 7:03 AM Data Servers, Supercomputers, Nuclear Power Plant Advantageous Location
by gutmonarch
Last post: 09/20/2020 7:25 AM
by gutmonarch
 3 96
08/03/2020 5:39 AM In Need of Expert Advice
by Autobroker
Last post: 09/18/2020 7:15 PM
by Autobroker
 71 688
09/01/2020 9:52 AM Telescope
by oilcan13
Last post: 09/15/2020 4:01 PM
by Rixter
 28 528
09/12/2020 8:54 PM 3 Perplexing Physics Problems
by Rixter
Last post: 09/14/2020 11:58 PM
by dkwarner
 6 452
09/12/2020 3:08 AM Help Me Pick A Vinyl Cutter!
by LazyDazy
Last post: 09/13/2020 12:33 PM
by Mehwish
 2 75
09/09/2020 9:53 PM Why You Can't Take a Good Picture of a Rainbow
by Rixter
Last post: 09/12/2020 3:22 PM
by Rixter
 16 319
09/09/2020 5:19 PM RF Smoke Signals
by HiTekRedNek
Last post: 09/11/2020 12:42 PM
by Rixter
 17 146
09/08/2020 10:25 AM Cool Under Pressure---NOT
by HiTekRedNek
Last post: 09/10/2020 10:37 AM
by Rixter
 13 116
09/09/2020 8:05 AM Reactive Artificial Skin
by HiTekRedNek
Last post: 09/10/2020 9:47 AM
by HiTekRedNek
 3 100
09/09/2020 10:29 AM Mighty Mice Don't Lose Muscle Mass in Space
by HiTekRedNek
Last post: 09/09/2020 7:01 PM
by SolarEagle
 2 96
07/24/2017 7:52 AM GPM Calculation
by Anonymous Poster
Last post: 09/09/2020 4:29 PM
by Anonymous Poster
 45 1027
09/01/2020 2:21 PM Sewage Backflow Prevention
by gringogreg
Last post: 09/09/2020 4:23 PM
by phoenix911
 37 499
09/08/2020 12:30 PM Caller ID Lookup
by HiTekRedNek
Last post: 09/09/2020 8:27 AM
by HiTekRedNek
 11 181
09/24/2007 11:24 AM Musician Hobby User Group
by Steve S.
Last post: 09/08/2020 9:41 PM
by javierxander
 13 346
08/31/2020 11:16 AM Uses for Formic Acid
by HiTekRedNek
Last post: 09/05/2020 12:35 AM
by truth is not a compromise
 17 317
09/03/2020 5:09 PM Water Depth of Storable Swimming Pool
by jmueller
Last post: 09/04/2020 11:17 PM
by BroAdam
 7 224
08/29/2020 5:53 AM Diamond Battery?
by HiTekRedNek
Last post: 09/03/2020 11:38 AM
by SolarEagle
 11 413
07/06/2020 6:10 PM Periodicity in Covid-19 Data
by Rixter
Last post: 09/03/2020 6:11 AM
by thewildotter
 18 349
09/01/2020 6:49 AM Tesla's Dream Coming True?
by HiTekRedNek
Last post: 09/02/2020 3:58 PM
by rashavarek
 12 244
05/20/2020 10:59 PM Pool Repair Question
by steve45
Last post: 09/02/2020 11:01 AM
by Stephen Archer
 39 632
08/27/2020 6:54 PM Hot Wired but No Spark?
by JE in Chicago
Last post: 09/01/2020 9:18 AM
by JE in Chicago
 15 273
08/28/2020 8:15 AM Basic Quantum Mechanics
by HiTekRedNek
Last post: 08/29/2020 12:31 PM
by StandardsGuy
 5 270
08/20/2020 2:13 PM Can Your FitBit Detect Covid?
by rashavarek
Last post: 08/28/2020 5:47 PM
by phph001
 15 225
08/21/2020 8:30 PM Ultra High Temperature Corrosion Resistant Alloys
by memyod
Last post: 08/25/2020 8:27 PM
by memyod
 14 232
08/22/2020 3:58 PM Kitchen Faucet Problem
by WJMFIRE
Last post: 08/24/2020 12:08 PM
by rwilliams
 17 419
06/14/2016 8:16 PM Another Las Vegas Loser Bites the Dust
by Fredski
Last post: 08/24/2020 6:23 AM
by phoenix911
 21 446
08/13/2020 11:47 PM How Much Memory Do You Have On That Flashdrive in Your Pocket?
by Sid_Sidow
Last post: 08/21/2020 11:33 AM
by redfred
 13 373
08/13/2020 10:18 PM Digital Data and Mass
by HiTekRedNek
Last post: 08/20/2020 8:29 PM
by Rixter
 15 234
07/31/2019 10:11 AM How to Make an LED Glow Using Maximum 47 Miliwatts Input?
by sciencetoolbar
Last post: 08/20/2020 3:33 PM
by SolarEagle
 20 276
08/14/2020 10:48 AM Black Silicon Photodetector Breaks the 100% Efficiency Limit
by SolarEagle
Last post: 08/19/2020 7:35 AM
by HiTekRedNek
 5 351
08/12/2020 8:06 PM A Set-Back for Astronomers and Scientists
by phoenix911
Last post: 08/15/2020 5:02 PM
by JWthetech
 16 370
08/06/2020 9:42 AM Cosmic Rays Affect Cloud Formation and Climate
by HiTekRedNek
Last post: 08/12/2020 11:47 PM
by SolarEagle
 7 190
08/03/2020 11:01 PM Phantom Printer?
by Sid_Sidow
Last post: 08/10/2020 12:33 PM
by Jpfalt
 13 450
08/06/2020 9:21 AM Lightning vs Temperature
by HiTekRedNek
Last post: 08/09/2020 5:11 PM
by SolarEagle
 20 348
08/07/2020 12:39 AM What is This Type of Vacuum Tube?
by Sid_Sidow
Last post: 08/08/2020 10:40 AM
by Sid_Sidow
 12 331
07/26/2020 4:24 PM Should Astronauts be Allowed to Take Their Pets in Space
by SolarEagle
Last post: 08/02/2020 10:39 PM
by SolarEagle
 25 317
07/14/2020 8:42 PM The Engineer and the Guillotine
by Griffex
Last post: 07/28/2020 11:29 PM
by SolarEagle
 4 142
04/12/2016 4:05 PM Swimming Pools
by ID Clark
Last post: 07/28/2020 6:42 PM
by Governer
 13 491
07/15/2020 9:14 AM Unknown Object
by PAPADOC
Last post: 07/28/2020 4:27 PM
by Jpfalt
 27 630
07/23/2020 8:23 PM Fun With Magnets Back in 1975
by SolarEagle
Last post: 07/27/2020 1:34 PM
by phoenix911
 5 264
07/24/2020 1:36 PM Electrolux Oven Error Code
by HiTekRedNek
Last post: 07/26/2020 6:28 PM
by JE in Chicago
 36 365
07/16/2020 1:49 PM Windscale Disaster
by SolarEagle
Last post: 07/23/2020 8:02 PM
by JWthetech
 48 355
07/21/2020 4:23 PM I Need a New Workstation
by Paulusgnome
Last post: 07/23/2020 11:32 AM
by rick_shoop
 7 319
07/19/2020 3:37 AM Dice Probability Puzzle
by Jorrie
Last post: 07/22/2020 5:44 AM
by Tornado
 33 507
07/20/2020 11:22 AM USA Made AC Recommendation
by Nancy_Swan
Last post: 07/21/2020 3:17 PM
by SolarEagle
 2 96
07/17/2020 4:29 PM What is this Metal and What Type Primer to Use?
by BruceFlorida
Last post: 07/20/2020 1:12 PM
by Jpfalt
 22 419
07/16/2020 9:31 PM Yes, Stephen Hawking Lied To Us All About How Black Holes Decay
by Rixter
Last post: 07/19/2020 1:27 AM
by Just an Engineer
 16 323
06/05/2020 6:17 PM Charge in Parallel, Discharge in Series
by HiTekRedNek
Last post: 07/18/2020 6:25 AM
by HiTekRedNek
 27 566
07/14/2020 11:05 AM Historic Cisterns
by Lehman57
Last post: 07/15/2020 8:25 PM
by Lehman57
 6 291
07/10/2020 3:53 AM Can a 3 Phase SCR Unit be Used as a Voltage Stabilizer?
by arunavamukerji
Last post: 07/14/2020 8:58 AM
by PWSlack
 11 203
10/15/2017 1:02 PM Air Pollution and Greenhouse Costs of Oil Transport
by lyn
Last post: 07/14/2020 4:47 AM
by Anonymous Poster
 59 520
06/29/2020 8:21 AM Speed of Descent
by netmaker
Last post: 07/07/2020 5:17 AM
by PWSlack
 44 415
02/06/2020 11:07 AM Has Anyone Ever Heard of Dead Rubber?
by NSS
Last post: 07/07/2020 4:32 AM
by josehenry1800
 23 644
06/09/2020 8:01 PM Contact Tracing Implications
by Autobroker
Last post: 07/07/2020 12:37 AM
by Autobroker
 72 344
07/02/2020 5:50 AM RS 608-727 (ANTEX TCSU1) Solder Station Schematic
by M. Jawed
Last post: 07/04/2020 12:01 PM
by Rixter
 9 432
06/22/2020 6:44 PM 120 V AC Single Phase Input and 120 V AC Single Phase Output VFD
by HiTekRedNek
Last post: 07/03/2020 4:43 PM
by GW
 29 581
09/25/2008 10:31 AM International Threads for Washing Machine Hoses
by Drone 601
Last post: 07/03/2020 9:47 AM
by JE in Chicago
 9 894
06/30/2020 11:26 AM What is This Doodad?
by dishow2002
Last post: 07/02/2020 9:10 AM
by mastrsmth
 20 578
06/29/2020 5:39 PM 1920 Refrigerator Changing Compressor
by wben01273
Last post: 07/01/2020 10:45 PM
by rwilliams
 8 257
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