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07/05/2020 7:30 AM Sterilizing "95" Masks by PAPADOC ; posted in BioMech & BioMed	Last post: 07/10/2020 1:08 AM by clint420601	25	322
06/25/2012 1:29 AM Circuit Breaker Breaking Current by sauravbabu ; posted in Electrical Engineering	Last post: 07/09/2020 4:49 PM by rwilliams	13	349
11/15/2017 12:34 PM Which Software Language? by Salih Mert ; posted in Mechanical Engineering	Last post: 07/09/2020 4:24 PM by Economist	18	513
07/06/2020 9:46 AM Pooling Substation by B.JEYACHANDRAN ; posted in Electrical Engineering	Last post: 07/09/2020 8:14 AM by vijaymail_electrical	4	229
07/03/2020 1:13 AM Learning Pump Curves by Maheva Camille RATSITOARISOA ; posted in Mechanical Engineering	Last post: 07/09/2020 7:24 AM by PWSlack	7	912
10/11/2008 6:00 AM tower wind load calculation by Anonymous Poster ; posted in Civil Engineering	Last post: 07/08/2020 11:09 PM by SolarEagle	14	2783
08/07/2009 8:18 PM Star Delta Load by send2vaiju ; posted in Electrical Engineering	Last post: 07/08/2020 10:02 PM by Simon Wan	37	2858
07/01/2020 5:14 PM Differential Protection by henry98 ; posted in Electrical Engineering	Last post: 07/08/2020 11:30 AM by PWSlack	6	165
07/01/2020 11:34 AM Artist in Need of Solar Theory: Search for Poor Mans Laser by mdsdmds ; posted in Electrical Engineering	Last post: 07/08/2020 10:20 AM by Rixter	26	333
05/18/2020 8:19 AM Discharge Tube Used in CO2 Laser by Mae Selvig ; posted in Manufacturing	Last post: 07/08/2020 8:16 AM by msbettyhunt	15	2099
07/06/2020 3:25 AM NEMA Standard for Rigid PVC (U-PVC) Conduit Bending Radius by Usman Nazar Rathore ; posted in Civil Engineering	Last post: 07/08/2020 3:35 AM by PWSlack	5	288
07/06/2020 4:35 AM UPS 24VDC o/p 40A Rating by Anonymous Poster ; posted in Electrical Engineering	Last post: 07/07/2020 7:19 AM by Anonymous Poster	3	83
06/29/2020 8:21 AM Speed of Descent by netmaker ; posted in General Discussion	Last post: 07/07/2020 5:17 AM by PWSlack	44	414
02/06/2020 11:07 AM Has Anyone Ever Heard of Dead Rubber? by NSS ; posted in General Discussion	Last post: 07/07/2020 4:32 AM by josehenry1800	23	643
06/09/2020 8:01 PM Contact Tracing Implications by Autobroker ; posted in General Discussion	Last post: 07/07/2020 12:37 AM by Autobroker	72	343
08/02/2007 12:57 AM Solder Wire vs. Solder Paste by Anonymous Poster ; posted in Manufacturing	Last post: 07/06/2020 8:38 AM by msbettyhunt	3	707
03/14/2011 11:06 PM Instrumentation Special: Tribo Electricity and Micro Phonic Noises by Shyam ; posted in Civil Engineering	Last post: 07/05/2020 1:07 AM by Shyam	6	295
03/31/2016 6:06 PM CSV vs. VFD by JHartung ; posted in Mechanical Engineering	Last post: 07/04/2020 5:53 PM by Valveman01	10	669
07/02/2020 5:50 AM RS 608-727 (ANTEX TCSU1) Solder Station Schematic by M. Jawed ; posted in General Discussion	Last post: 07/04/2020 12:01 PM by Rixter	9	427
06/28/2020 9:12 AM Is This a Load Bearing Wall? by AMoore ; posted in Civil Engineering	Last post: 07/04/2020 7:00 AM by Randall	43	989
07/03/2020 11:39 PM CR4 DAILY DIGEST NOT RECEIVING AGAIN by dhayanandhan.s ; posted in CR4 Feedback	Last post: 07/04/2020 4:37 AM by Tornado	1	120
06/22/2020 6:44 PM 120 V AC Single Phase Input and 120 V AC Single Phase Output VFD by HiTekRedNek ; posted in General Discussion	Last post: 07/03/2020 4:43 PM by GW	29	580
07/01/2020 5:43 PM Project feedback - LORA + GPS chip recommendations (not LoRAWAN) by rfwifi123 ; posted in Communications & Electronics	Last post: 07/03/2020 3:16 PM by John L	4	317
09/25/2008 10:31 AM International Threads for Washing Machine Hoses by Drone 601 ; posted in General Discussion	Last post: 07/03/2020 9:47 AM by JE in Chicago	9	893
06/27/2020 6:38 AM Adhesives to Fix Pinion to Nut? by prof peanut1 ; posted in Chemical & Material Science	Last post: 07/03/2020 4:00 AM by JOVIAN2112	14	1027
01/28/2020 8:22 AM Thesis for Final Year by Anonymous Poster ; posted in Software & Programming	Last post: 07/02/2020 11:33 PM by SolarEagle	4	354
07/01/2020 11:43 AM Static Transfer Switch Safety Configuration by Anonymous Poster ; posted in Electrical Engineering	Last post: 07/02/2020 3:36 PM by jmueller	6	130
06/28/2020 4:00 PM 5G Network by Anonymous Poster ; posted in Communications & Electronics	Last post: 07/02/2020 9:43 AM by msbettyhunt	14	281
06/30/2020 11:26 AM What is This Doodad? by dishow2002 ; posted in General Discussion	Last post: 07/02/2020 9:10 AM by mastrsmth	20	577
06/29/2020 5:39 PM 1920 Refrigerator Changing Compressor by wben01273 ; posted in General Discussion	Last post: 07/01/2020 10:45 PM by rwilliams	8	256
06/27/2020 6:01 PM Additional Grounding in TN Systems by Designmen ; posted in Electrical Engineering	Last post: 07/01/2020 3:03 AM by Anonymous Poster	10	185
06/30/2020 2:48 PM Electrical LT Distribution Room Ventilation by Anonymous Poster ; posted in Electrical Engineering	Last post: 07/01/2020 2:48 AM by PWSlack	5	117
06/27/2020 6:54 AM Variable Speed Shaker? by JE in Chicago ; posted in Mechanical Engineering	Last post: 06/30/2020 6:01 PM by phoenix911	32	601
06/24/2020 3:03 PM Remove the Dashboard! by JE in Chicago ; posted in Transportation	Last post: 06/30/2020 4:42 PM by Autobroker	30	1448
06/30/2020 7:55 AM AUMA MATIC 744814 by Anonymous Poster ; posted in Electrical Engineering	Last post: 06/30/2020 10:29 AM by Anonymous Poster	1	55
06/25/2020 10:18 AM Hoses vs. Tubes by Labyguy ; posted in Mechanical Engineering	Last post: 06/30/2020 10:16 AM by ccoop609	27	793
12/20/2010 12:14 AM Identify This Machine by bwire ; posted in General Discussion	Last post: 06/30/2020 6:49 AM by Randall	41	913
03/30/2018 11:33 AM Drafting Reference Book by BruceFlorida ; posted in General Discussion	Last post: 06/30/2020 2:10 AM by riorio	18	445
06/28/2020 1:56 PM Water Well Pressure Switch problems by netmaker ; posted in General Discussion	Last post: 06/29/2020 12:37 PM by SolarEagle	4	152
06/26/2020 8:41 PM Fluids Mixing at Two Different Pressures by vanuta ; posted in Chemical & Material Science	Last post: 06/29/2020 9:15 AM by LeoN1	17	2111
08/05/2015 9:17 PM Toys and Games, Not Aerospace and Defense by lyn ; posted in General Discussion	Last post: 06/29/2020 8:52 AM by RyanPaterson	28	584
06/22/2020 2:59 PM DC Inverter Split Air Conditioners - Fault or Error codes by M. Jawed ; posted in General Discussion	Last post: 06/28/2020 7:07 PM by SolarEagle	5	263
06/23/2020 9:47 AM Deflection on a Torispherical Head Due to a Concentrated Load by Anonymous Poster ; posted in Mechanical Engineering	Last post: 06/27/2020 9:18 AM by anil.grp.tech	10	496
06/24/2020 4:11 PM PB 302 LV2 by David Paragon ; posted in Chemical & Material Science	Last post: 06/27/2020 7:45 AM by HiTekRedNek	4	817
01/30/2017 1:29 PM The Origin Of Water? by JE in Chicago ; posted in Chemical & Material Science	Last post: 06/27/2020 6:23 AM by JE in Chicago	48	527
06/20/2020 2:07 AM Spraying and Evaporation Rate by mikespike ; posted in General Discussion	Last post: 06/26/2020 8:57 AM by mikespike	10	207
06/22/2020 10:00 AM Guide Program for DC Machines by Anonymous Poster ; posted in Electrical Engineering	Last post: 06/25/2020 8:26 AM by Hong98	14	192
06/21/2020 8:48 AM Solar Inverter and Controller Battery Voltage by Anonymous Poster ; posted in Electrical Engineering	Last post: 06/24/2020 8:28 AM by redfred	14	262
06/22/2020 2:04 AM Absolute Humidity Measurements by TSegakweng ; posted in General Discussion	Last post: 06/24/2020 7:25 AM by PWSlack	9	184
05/09/2020 9:37 AM Ratchet Piston Engine Design by TommeyReed ; posted in Mechanical Engineering	Last post: 06/23/2020 12:06 PM by Camshaft	19	406

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