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Sustainable Engineering
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04/11/2010
8:47 AM
How to Separate Al and Cu?
by Anonymous Poster
Last post:
08/15/2024
9:35 AM
by
PWSlack
13
1464
07/13/2010
6:34 AM
Thickness and Melting Point of AISI 304 Stainless Steel
by
kokyr
Last post:
02/21/2024
8:06 AM
by
PWSlack
8
1074
09/08/2017
3:53 AM
New Method of Sea Water Desalination by Flotation of Liquid Salt
by
mikespike
Last post:
09/20/2023
7:34 AM
by
PWSlack
35
968
03/27/2008
10:55 AM
Can an electric water heater be operated on its side?
by
corneliusvansant
Last post:
09/01/2023
7:29 AM
by
PWSlack
23
2122
03/07/2023
6:46 PM
New Nuke
by
lyn
Last post:
03/09/2023
8:52 PM
by
lyn
3
721
11/26/2022
7:58 AM
Inverted Spillway on a Lake
by
HiTekRedNek
;
also
posted
in
General Discussion
,
Civil Engineering
Last post:
12/03/2022
12:03 PM
by
redfred
19
762
11/07/2022
11:18 AM
Egg Whites to Filter liquids
by
lyn
Last post:
11/08/2022
7:05 AM
by
Randall
7
560
10/25/2022
3:10 PM
Car radiator, heater core or something else for greenhouse?
by
gaiatechnician
Last post:
10/29/2022
11:25 AM
by
HiTekRedNek
6
122
06/08/2022
5:08 PM
How much does convection slow heat flow downwards in still water?
by
gaiatechnician
Last post:
09/18/2022
12:08 PM
by
truth is not a compromise
19
267
06/02/2022
4:58 PM
This just in,… what a messed up world…
by
phoenix911
Last post:
06/09/2022
11:50 AM
by Anonymous Poster
24
274
04/04/2022
4:43 PM
Four seasons greenhouse. 3 inch pipes instead of 2 x 4s in insulated north wall?
by
gaiatechnician
Last post:
04/17/2022
7:55 PM
by
artsmith
10
196
02/15/2022
7:59 AM
I designed a 1 megawatt wind turbine that cost $25000 to $16000 for 25 years of active use what's it worth
by
alex12
Last post:
02/15/2022
9:36 PM
by
SolarEagle
13
70
06/23/2021
3:19 PM
Wind and Solar Energy Becomes Cheaper than Coal
by
redfred
Last post:
07/01/2021
2:58 AM
by
SolarEagle
26
901
05/26/2021
3:50 AM
Maybe Restarting My Solar Experiments, Fixing Past Failings
by
gaiatechnician
Last post:
05/28/2021
11:31 PM
by
dkwarner
7
1208
01/19/2021
3:55 AM
Experimental Greenhouse, Which Data Loggers?
by
gaiatechnician
Last post:
05/12/2021
1:52 PM
by
gaiatechnician
15
2693
03/26/2021
3:40 AM
Energy of the Phase Change in Condensation -- Where Does it Go?
by
gaiatechnician
Last post:
04/07/2021
12:51 PM
by
gaiatechnician
6
1893
02/09/2021
9:34 AM
Size of Cable
by
naouras
Last post:
02/12/2021
4:56 AM
by Anonymous Poster
18
884
01/03/2021
1:24 PM
Creating 0.7 MW -1 MW Wind Turbines for Less then 40,000 USD
by
alex12
Last post:
01/17/2021
10:17 PM
by
jack of all trades
29
1334
01/08/2021
10:20 AM
Green Energized Off Grid Mobile Homes NSA Fasttrack Grant Need Partner
by
David Pressler
Last post:
01/09/2021
12:47 PM
by
SolarEagle
13
1229
05/11/2018
11:36 AM
Self-Sustained Water Pump
by
spammy
Last post:
09/28/2020
5:07 AM
by
gaiatechnician
58
3480
12/13/2010
6:12 PM
Sticker Remover Methods
by
mdsrecycling
;
also
posted
in
Chemical & Material Science
Last post:
09/14/2020
3:35 AM
by
WindyInTexas
54
3896
03/23/2020
12:20 PM
COVID-19
by
gutmonarch
Last post:
03/24/2020
10:32 AM
by
Torqued
20
3018
08/12/2013
3:35 PM
Sustainable Earth Coupling or Wind Milling?
by
JP76
Last post:
03/04/2020
4:40 PM
by
Yury P.
78
3550
01/23/2020
6:33 AM
Mixed Plastic Waste Converted Back to Oil
by
jhhassociates
Last post:
01/27/2020
7:05 AM
by
Just an Engineer
12
521
12/04/2019
12:07 PM
China is Building Coal-fired Power Plants in Other Countries
by
StandardsGuy
Last post:
01/22/2020
11:44 AM
by
DaveD
57
1233
12/10/2019
3:50 AM
Power Plant Set to Become World's First Carbon-Negative Business
by
PWSlack
Last post:
12/15/2019
8:21 PM
by
JWthetech
9
1034
11/08/2019
12:51 PM
Coal Seam Fires Pour Out CO2 and Poisons
by
StandardsGuy
Last post:
11/13/2019
12:32 AM
by
SolarEagle
37
1468
11/06/2019
2:46 PM
Separation
by
kambiz2019
Last post:
11/07/2019
4:01 AM
by
PWSlack
7
1301
10/22/2019
8:41 AM
Ozone Hole Smallest Since Records Began, Say Scientists
by
PWSlack
Last post:
11/06/2019
11:58 AM
by
MR. Guest
22
410
11/01/2019
12:27 PM
Negative Efforts to Reduce Global Warming
by
StandardsGuy
Last post:
11/04/2019
8:21 AM
by
PWSlack
23
294
10/15/2019
5:21 PM
Calculating Torque Over a Surface Area
by
MICHAEL BERDAN
Last post:
10/17/2019
9:00 AM
by
MICHAEL BERDAN
18
441
08/03/2019
6:20 AM
Recycling Bikini Wax
by
Nothing is Impossible
Last post:
08/24/2019
11:06 AM
by Anonymous Poster
4
244
05/19/2019
7:26 AM
Fuel Cells
by
PAPADOC
Last post:
05/23/2019
5:49 PM
by
SolarEagle
29
285
05/13/2019
3:15 PM
Hemp Plastic
by
icapackrat
Last post:
05/19/2019
2:11 PM
by
PWSlack
4
96
03/11/2019
5:07 PM
Recycling... Have We Created a Monster?
by
JE in Chicago
Last post:
03/18/2019
1:25 PM
by
rashavarek
41
468
04/16/2014
2:28 AM
An Idea For Safer Storage of HHO
by
hydrogenhead
Last post:
02/10/2019
1:10 PM
by
Feenix
22
1088
07/11/2018
9:49 AM
Great Pacific Garbage Patch Solutions
by
HeadsUp
Last post:
10/31/2018
3:03 PM
by
munch
68
661
01/30/2011
7:52 AM
Woodfired Boiler For Home Radiant Heating?
by
bobthefarmer
Last post:
10/17/2018
5:11 AM
by
Andy Germany
18
530
08/08/2009
4:05 AM
Making Cement from Recycled Materials
by
mrswamy
Last post:
09/05/2018
1:15 AM
by
sceptic
15
270
08/24/2018
1:58 AM
Upcycle or Recycle: What Would You Build?
by
Nothing is Impossible
Last post:
09/02/2018
8:25 PM
by
Nothing is Impossible
19
316
06/22/2017
3:14 PM
Rotating Dwelling With Utility Hub Challenge of the Month
by
James Stewart
Last post:
08/24/2018
9:23 AM
by
JBTardis
43
510
10/15/2017
12:31 PM
Interesting? New Wind Turbine Design
by
lyn
Last post:
08/24/2018
5:39 AM
by
truth is not a compromise
42
718
07/13/2017
9:00 AM
Climate Change - Again
by
PWSlack
Last post:
07/13/2018
6:36 AM
by
phoenix911
28
380
04/15/2011
6:10 AM
Sorting Plastic from Paper
by
bvandedr
Last post:
05/24/2018
2:47 AM
by
pranay123
18
767
05/21/2018
12:18 AM
Interesting Piece on Environmental Pollution
by
lyn
Last post:
05/23/2018
5:06 AM
by
IdeaSmith
4
244
12/06/2017
2:15 PM
Rheological Testing of Texas Fruitcake
by
James Stewart
Last post:
05/14/2018
10:02 AM
by
davidkakku
45
526
04/06/2018
10:28 AM
Salt Battery
by
PAPADOC
Last post:
04/09/2018
6:40 PM
by
HiTekRedNek
14
737
03/06/2009
6:36 AM
What's the True Cost of Wind Energy?
by
cwarner7_11
Last post:
02/19/2018
4:51 PM
by
avid0g
92
1243
04/25/2010
12:41 PM
Solar Air Heater
by
nikolay
Last post:
02/08/2018
1:57 PM
by
avid0g
55
672
11/20/2017
12:40 PM
Distillation Generator
by
James Stewart
Last post:
12/04/2017
3:16 PM
by
James Stewart
59
724
11/12/2011
11:24 AM
Question About Design Programs
by
shaqtus
Last post:
10/28/2017
8:36 AM
by
tarun1919
16
152
09/30/2012
10:55 AM
Low Pressure Water Distillation. Why is it Not Used More?
by
tcmtech
Last post:
10/27/2017
12:49 AM
by
RegularAndy
55
3049
10/11/2017
3:23 PM
AI Versus Human Engineering
by
James Stewart
Last post:
10/23/2017
3:25 PM
by
PeterT
13
210
10/20/2017
4:55 PM
An Interesting (Surprising) Perspective on Coal
by
lyn
Last post:
10/23/2017
11:58 AM
by
Dennis R. Levesque
4
347
09/28/2017
10:07 AM
New Army Front Deployed Energy Source
by
James Stewart
Last post:
10/03/2017
3:22 PM
by
James Stewart
29
365
09/28/2017
10:44 AM
Bacterial Spore Engines and Applications?
by
James Stewart
Last post:
09/28/2017
3:28 PM
by
Rixter
8
192
07/19/2017
11:54 PM
Shortcuiting the Solar PV Array
by
sudhakar veerasamy
Last post:
07/31/2017
8:10 PM
by
truth is not a compromise
43
967
06/06/2015
10:24 PM
Home Built Solar Heater
by
Luke S.
Last post:
07/23/2017
4:20 AM
by
tonylampard
34
818
09/13/2015
6:34 AM
Charging R600a
by
hydrogenhead
Last post:
07/21/2017
4:36 PM
by
RAMConsult
34
1034
05/19/2017
4:30 PM
Diatoms and Silica Patterns
by
James Stewart
Last post:
05/22/2017
11:25 AM
by
dkwarner
9
219
05/11/2017
12:32 PM
Tesla Solar Panel Vs. Hail Cannon
by
rashavarek
Last post:
05/15/2017
11:26 AM
by
Brave Sir Robin
9
376
05/04/2017
11:09 AM
Energy Storage Efficiency Compared to Scalability Volume
by
James Stewart
Last post:
05/09/2017
12:11 PM
by
James Stewart
16
283
04/25/2017
4:48 PM
Thermophotovoltaic Advances?? Anyone?
by
James Stewart
Last post:
04/26/2017
8:44 AM
by
James Stewart
13
275
04/20/2017
2:05 PM
Water Taste Test Winners
by
James Stewart
Last post:
04/24/2017
4:01 PM
by
Brave Sir Robin
4
174
04/17/2017
1:46 PM
Solar Moisture Harvesting Using Metal Organic Framework (MOF)
by
James Stewart
Last post:
04/20/2017
10:44 AM
by
James Stewart
15
305
04/03/2017
5:52 PM
Ground Source Heat Pump - Calculators and Good Idea (?)
by
MillMatt
Last post:
04/10/2017
6:53 PM
by
SolarEagle
27
525
03/16/2017
1:16 PM
The Big Let Down in Molten Salt Nuclear Fission
by
James Stewart
Last post:
03/23/2017
10:01 AM
by
James Stewart
39
389
03/19/2017
2:27 PM
Art Rosenfeld the Father of Energy Efficiency
by
EV1guy2004
Last post:
03/20/2017
2:37 PM
by
tcmtech
3
236
03/11/2017
9:45 PM
Mini Boiler Project of Mine
by
tcmtech
Last post:
03/16/2017
12:25 PM
by
Drew K
47
495
03/12/2017
10:10 PM
INDRA Engineering Prize
by
GSE
Last post:
03/13/2017
2:49 PM
by
Brave Sir Robin
1
182
02/11/2017
5:02 PM
Manipulated Global Warming Data--Billions Spent
by
JE in Chicago
Last post:
02/21/2017
6:04 PM
by
Mikerho
39
247
02/05/2017
6:16 PM
Leading AGW/Climate Change Leaders Caught Manipulating Data Again
by
tcmtech
Last post:
02/15/2017
1:48 PM
by
tcmtech
27
282
12/15/2016
4:20 PM
Heating 14,000 Gallons of Water With No Added Equipment
by
James Stewart
Last post:
01/24/2017
9:48 AM
by
James Stewart
36
415
11/22/2016
11:44 AM
Hydroelectric Power Generation System Design Recommendation
by
philfloridabuckeye
Last post:
11/23/2016
9:06 AM
by
James Stewart
14
342
10/12/2016
2:40 PM
Cost Per Unit kWh of a Battery Over Its Life
by
jawadwaheed09
Last post:
11/20/2016
4:15 PM
by
67model
17
437
01/08/2008
8:21 AM
Smokeless Fuel
by
johncash
Last post:
10/02/2016
12:18 AM
by
michael htut
5
142
09/26/2016
10:13 AM
Fly Away Flywheels
by
Drew K
Last post:
10/01/2016
11:38 AM
by
SolarEagle
81
1175
09/27/2016
1:18 PM
Solar Water Distillation Using Vacuum Pump
by
Metom
Last post:
09/29/2016
10:57 AM
by
James Stewart
16
406
09/23/2016
9:26 AM
HOIP Solar Cells
by
James Stewart
Last post:
09/27/2016
11:35 AM
by
James Stewart
17
423
09/08/2016
1:32 PM
24/7 Solar?
by
Hannes
Last post:
09/09/2016
4:58 PM
by
James Stewart
1
309
08/09/2016
4:48 PM
Low Energy Nuclear Transmutations
by
James Stewart
Last post:
08/11/2016
4:09 PM
by
James Stewart
18
378
09/24/2015
1:06 AM
Texas, Unique in so Many Ways
by
lyn
Last post:
06/06/2016
2:26 PM
by
James Stewart
34
517
01/12/2015
9:34 PM
Re-purposing Some Items
by
lyn
Last post:
06/03/2016
6:51 PM
by
Injiniir
15
497
03/28/2016
5:22 AM
Ox Power
by
Ramm
Last post:
05/26/2016
11:51 AM
by
Jpfalt
15
329
04/21/2016
10:57 AM
Mars Terraforming Plan Suggestions
by
James Stewart
Last post:
04/26/2016
2:53 PM
by
James Stewart
20
352
04/07/2016
7:50 AM
Pumps and Energy
by
jackiemax
Last post:
04/15/2016
7:37 AM
by
phoenix911
15
445
03/31/2016
4:38 AM
FW From SW
by
Ramm
Last post:
04/10/2016
7:53 AM
by
Just an Engineer
26
353
03/05/2016
12:31 PM
Vertical Farming Structural Design
by
xsolen
Last post:
03/28/2016
4:05 AM
by
Ramm
7
334
02/29/2016
11:38 AM
Product Reuse - Portable Wind Turbine
by
PhoenixBath
Last post:
02/29/2016
2:10 PM
by
Doorman
2
230
02/19/2016
1:24 PM
Passive Solar Heating/Cooling
by
James Stewart
Last post:
02/22/2016
2:08 PM
by
lyn
22
418
02/15/2016
3:50 PM
Geothermal Investors
by
sakkid
Last post:
02/19/2016
4:10 PM
by
sakkid
8
244
12/01/2015
7:51 AM
Carbon Free Power Production by 2050
by
NotUrOrdinaryJoe
Last post:
02/10/2016
8:43 PM
by
Canary
102
719
01/23/2016
9:13 PM
Fibre Reinforced Polymer
by Anonymous Poster
Last post:
02/08/2016
11:18 AM
by
kayode Oluwabunmi
24
467
01/28/2016
6:32 AM
Uruguay Now Generates Almost 100 Percent Of Its Electricity From Renewables
by
energyconversion
Last post:
01/29/2016
1:18 PM
by
SolarEagle
4
405
12/13/2015
10:52 PM
What is Your Environmental Contribution - Post COP21
by
Don from Oz
Last post:
01/25/2016
12:34 AM
by
Casper71
44
661
12/08/2015
7:27 AM
Solar Energy
by Anonymous Poster
Last post:
12/09/2015
5:17 PM
by
StandardsGuy
7
454
10/26/2015
5:21 AM
Land Use PM Emission Calculation
by
harryspark
Last post:
12/01/2015
9:34 AM
by
James Stewart
17
339
11/19/2015
12:15 PM
Harnessing Energy from Ocean Thermal Layers
by
wolfie62
Last post:
11/21/2015
10:35 AM
by
MagicWand
22
426
10/30/2015
7:54 AM
Nuclear to Electric Energy Conversion
by
Legolaz
Last post:
11/02/2015
10:45 AM
by
SHOCKHISCAN
29
607
10/12/2015
5:32 PM
Kimberlite Mines and Wind Power
by
HiTekRedNek
Last post:
10/15/2015
9:42 PM
by
mog
52
943
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