9 Days of growth with leaves picked around 0:55. See how fast they grow back.

MPEG-4 Video - 20.09 MB - 12/17/2019 at 02:00



Time lapse of two days of growth. The video jumps in the middle because it skips the 6 hours when the lights are off.

MPEG-4 Video - 4.26 MB - 03/16/2019 at 20:09



This shows the newest crop for one day's growth. The pictures are taken with a webcam using a new light-synchronous trigger that eliminates the annoying flashing of the previous time lapse videos. The real-time water temperature, conductivity, and pH are superimposed on each frame. The control software takes a picture every 10 minutes.

MPEG-4 Video - 2.01 MB - 03/10/2019 at 15:22



This is a time lapse of some plants after they were moved down from the starter area. The front plant is initially about 2 weeks old and the side plants are about one week old. The following week is compressed into 1:30. A couple of leaves disappear in the middle of the video because I was doing some taste testing :-) .

MPEG-4 Video - 25.20 MB - 11/16/2018 at 06:34


first version time lapse no audio.mp4

This is a time lapse of the plant starter area of the first version of the tower. The lettuce leaves growing from below occasionally dissapear because they are being picked.

MPEG-4 Video - 4.86 MB - 08/01/2018 at 18:14



This shows a time lapse of the plants growing in an earlier prototype of the system. Note that this is ONE DAY of growth. The annoying black bars are caused by the interaction of the rolling shutter on the camera and the LED lights.

MPEG-4 Video - 4.60 MB - 08/01/2018 at 13:57


Valve Testing.MOV

This shows the initial wet testing of the valve in the fall 2018 version of the system. You can see the pressure going up to ~50 PSI when the valve closes.

quicktime - 26.34 MB - 10/12/2018 at 04:30



This video shows a test of the pinch valve which is used to control the sprayers. After clicking the link, you may have to hover over the picture and click play.

When the pump is running and the valve is closed, it compresses a silicone tube and the sprayers generate mist in the pods. When the valve is open, the water drains from the system back into the base. The pump also runs with the valve open, in order to recirculate the water and add oxygen from "waterfall effect" as the water falls from the valve back into the base.

Open Web Media Project - Video - 3.54 MB - 08/01/2018 at 13:42