Aubrey Zhang

+ Follow
since Jan 15, 2019
After obtaining his PhD in Electrochemistry in 1994, Aubrey has done many things over the past 24 years, such as former post-doctoral researcher in Materials Chemistry at UIUC (Urbana-Champaign at University of Illinois), lifetime free-lance preacher, current director of TheoLogos Publications, 014599190 Global Inc, and SelfWebHosting.com, former salesman of diamond tools for Superprem Industries, former director of DiaSolid Kitchen & Bath, finishing carpenters, etc. Currently working for CRE Green, a solar company in Kelowna, BC. After all these experiences, his life motto is this: sharp mind must combine with skillful hands.
Apples and Likes
Apples
Total received
1
In last 30 days
0
Total given
0
Likes
Total received
10
Received in last 30 days
0
Total given
1
Given in last 30 days
0
Forums and Threads
Scavenger Hunt
expand First Scavenger Hunt

Recent posts by Aubrey Zhang

Glenn Herbert wrote:Very cool looking, but I am concerned about its structural integrity. It gets 100% of its strength from the end walls, and depends on the lateral stiffness of the long facets to keep from collapsing in the middle. I think the original building the concept came from supports the roof facets at many internal points, so that it does not need to span much aside from the overhanging end.

If the greenhouse profile is a catenary arch, it would not have internal stresses, but a snow load would change that; you can't have it be stable both with and without snow. The vertical back wall would need to be braced to the ground to support the thrust if it does use any arch design.



Glenn, good point and I have thought about it for quite a while. I plan to solve it two ways. (1) Use two batches of long and continued PVC tubes from end to end in two directions with holes drilled to accommodate the sectioned pieces in the remaining direction. (2) Build internal supports inside as I need some internal structure to hang my vertical grow towers anyway.
4 months ago
There is also an app called PlayOnLinux which is easier than Wine to use on Linux.
4 months ago
OK, I can get the image URL after submitting the post: https://permies.com/t/52817/a/70788/airlift_dripgrow_2towers.jpg. Now testing to get the URL by clicking the Preview button, maybe it will work.

No, I cannot get the attachment image URL before submitting.

Well, then you need to find an image hosting site or post to your own website and get the image URL - this is what I am doing.

Or to get the URL of a particular image after submitting and then edit the post by inserting the image URL. A bit awkward but it works if you do not want to have a place to have your images hosted.
4 months ago
Don, good to see you here. Just one thing to point out and help you... You seem to use the Attachments option to post images and you have mentioned your concern of not being able to post images within the text.

In fact, you can. Well, not with wrapping text but at least we are able to insert an image between paragraphs. For example, I am inserting this picture right below, using this format [ img ]https://airliftdripgrow.com/wp-content/uploads/2019/01/aquaponics.jpg[ /img ] according to what is suggested by the forum (I have to add spaces after [ and before ] to show the BB code):



You can post the image URL right into the editor and highlight it and then click the Img button above the editor to wrap around the URL with [ img ] and [ /img ] (again I have to add spaces after [ and before ] to show the BB code). Or you could copy the image URL and then cilck the Img button to paste the URL at prompt popup area.

However, the above methods assume that you have a place to upload your photos and get the URLs of those photos. I am testing now if I can get the URL of this image after uploading as an attachment.

4 months ago

Kevin Swanson wrote:This appears to be a more up to date site that has this calculator: http://www.ecosystems-design.com/climate-battery-calculator.html



Thank you Kevin so much for this! I plan to use it to build a geo-air-thermal greenhouse. But the look will be much better. This is what I plan to use:

4 months ago
Has anyone tried using airlift pumps? I am a fan of AIRLIFT PUMPS. Now I am using them to move water up and around wherever I can, best for aquaponics or hydroponics, as living things need both air and water at the same time. And I prefer to moving water slowly with low pressure (i.e. DripGrow) rather than fast with high pressure (traditional irrigation). That is why I set up a website called AirliftDripGrow.com (Chinese) and DripGrowTower.com (English).
4 months ago
What does BB stand for? Bulletin Boards?
4 months ago
I came up with an automatic way to grow microgreens using regular nursery grow trays. Check it out... As for the seeds, I just used several mixed seed packages that came along with the microgreens machine I bought before I assembled my own system. Our family like Cashew a lot.

Automatic Feeding and Recycling Water Used to Grow Microgreens. https://permies.com/t/100637/Automatic-Feeding-Recycling-Water-Grow
4 months ago
Strange, these is no section called "Microgreens" and I do not see many posts on microgreens - why?
5 months ago

Walt Chase wrote:Been to Chena Hot Springs before.  Located NE of Fairbanks AK.  One of the colder parts of the state in winter.  They generate 100% of their energy needs along with a geothermal heated greenhouse.  We toured the power plant and GH the last time we were there.  It is a resort, but the owner is big into alternative energy and renewable s.  Here is a link to their renewabl energy part of the website.  https://chenahotsprings.com/renewables/



Good. But they have Hot Springs to use, which is not applicable for most of us. I believe that we could achieve NetZero without using hot springs water. Passive solar, solar waterfalls, geo-air, compost heat plus a few solar voltaic panels - Integration of all that are applicable.
5 months ago