Levi’s® Stadium location overview and yes, you can spot trash with Google Earth! These aerial photos seem to have been taken in later July or early August 2015. In June 2015, the Santa Clara Valley Water District conducted mowing operations to cut back dry vegetation along the creek bank as part of their annual maintenance operations. In early July 2015, I filed an illegal dumping complaint against the stadium with the Water District in response to the horrible trash coming off the stadium property. The Water District forced the stadium to do a "clean-up" and they did remove some of the most visible trash. It has since returned as you have seen in earlier videos in this playlist: https://www.youtube.com/playlist?list=PLpY2FP1a9tiuBGnZP9UkrRBAPsPg1L4rP Google Earth view: https://www.google.com/maps/@37.4044016,-121.9871971,8829m/data=!3m1!1e3 San Jose Mercury News article: http://www.mercurynews.com/science/ci_24543355/new-49ers-stadium-is-it-really-environmentally-friendly The stadium Environmental Impact Report (EIR): http://santaclaraca.gov/about/levi-s-stadium/49ers-stadium-deir Contact the stadium operating company if you find this as disgusting as I do: http://www.levisstadium.com/contact-us/ ... https://www.youtube.com/watch?v=efU-t7v6qTk

This is version 2 of my solar powered work light. I added a small 12v lithium battery pack (solar charged of course) and modified the LED driver to double the light output and then mounted the lamp on a small camera tripod. I also review the 12v lithium battery pack I first covered in a mail bag video last week (includes link): - http://youtu.be/pTebelG9Lws This is the battery pack information I found in my on-line research: - http://ve2zaz.net/blog/index.php?/archives/13-A-too-good-to-be-true-6800-mAh-Li-Ion-12V-battery-pack....html I'm getting capacity readings in the 1800mAH range at 0.6 amps discharge rate. I've re-tested it with 0.5 amps and may try with 0.4 amps as that more closely matches the LED load, and get similar capacity readings. This makes for a nice, portable configuration. The battery pack should give about 5 hours of run time. The camera tripod has a tilt/pivot head to allow for positioning the light and it has telescoping legs to raise and lower the light. I'm quite happy with the way it turned out. It will light up a dark room quite nicely and throws a very wide beam pattern. My camera doesn't show the lighting affect of the lamp very well, so I didn't shoot any video of the light output. If there is interest in that, I might give it a try with my new camcorder once I get it working. For future improvements, I could install a co-axial power jack into the side of the driver housing to allow the battery pack to plug directly in and eliminate that extra length of cable. I also have 600mA and 900mA constant current LED drivers on order, so want to try that instead of the inefficient series resistor. I think I should be able to make use of this light for filming future videos, I already used it to film part of my over the air TV system video: - https://www.youtube.com/watch?v=PAxID-Wj8Ig I've run the light on for several hours with no issues, the housing is just barely warm to the touch. Also been using if for lighting on a few videos and with the manual white balance on the new camcorder, it works great. I used a Hakuba mini-tripod, cost about $20 from Frys Electronics, the 12v battery pack, about $23 on eBay, and the 12v 10W LED flood lamp that are around $10 on eBay, just search for "10w led flood light 12v" and you'll find dozens of listings. And someone must think this is a good idea, because now they are selling rechargeable LED flood lights: - http://www.yescomusa.com/10W-Rechargeable-Waterproof-LED-Flood-Light-Fixture.html If you have any questions or comments, use the comments section below. Give the video a thumbs-up if you like it and subscribe to the channel for future updates. Thanks for watching. ... https://www.youtube.com/watch?v=s1Gxr4oa4ug

Starting to wire up the battery holder bus bars and fuse wires. I'm using 8x0.7mm nickle tabbing for the negative bus bars on each set of 3 holders. This should be good for about 25A of current. The positive terminals will have individual Tesla-style fuse wires (30AWG) connecting each cell to the next negative bus bar. I'll be putting 2 - 4S packs on a single board. There will be 2 separate 8-position terminal strips, rated for 30A current for making connections to each pack. 5 positions on each strip will be for the balance connections. The remaining 3 positions will allow a BMS board to be connected. I'll also be able to join the 2 separate 4S packs into a single 7S pack (leaving 1 unused set of holders) if I decide to go to a 24V battery in the future. In the next video, finishing the fuse wire connections and making the joining 4 holders into one 4S pack: https://youtu.be/6tmoyHJ5W1Q If anyone is interested in purchasing 3D printed battery holder clips in ABS plastic for your project, see the ordering information in the text document below, or contact me and I can mail you a copy: http://www.4crawler.com/YouTube/#BH-18650-PCx You can also order the clips off Thingiverse printed in PLA. Be sure to rate, comment and share And as always, thanks for watching SOUNDTRACK: Louisiana Fairytale by Austin Rogers http://drfiddle.com/show_tune.php?id=94 ... https://www.youtube.com/watch?v=TA_WtpzmqJc

Another stop on a bike ride to check out an old road I saw near the middle of the Grizzly Flat / North Trail in Upper Stevens Creek County Park. Main goal was to locate 2 features that show up on the hill shade map, one a steep area along the south side of Branch D that may have slid and taken out the old 1897 road. The other feature seems to be a steep gully beside the road that also runs down to Branch D. Way points at these 2 features helped in lining up the topo may over the hill shade map. A few things to look for in upcoming visits are if the barbed wire fence is only along the road or if it runs in a straighter line between the curves in the road (i.e. a property boundary). Also, need to check for signs of old tree stumps or other signs of logging in the area. This road seems to have been built for decent sized trucks, judging by the large radius curves, but not sure of the purpose. This road doesn't appear on any maps. It looks like it may been constructed around the same time as the Grizzly Flat road. Grizzly Flat North Road first appears on the 1961 USGS topo map. There appear to be at least 3 roads that come together at the bottom of the Branch D canyon. 2 of them seem to be quite old based on their minimal construction. Then this road seems more modern in terms of wider radius turns and that it joins up to an existing road. But then the question is, what was this built road for? Were the 2 older roads in the canyon still in use when this road was built? If not, then why did this road go down to the same area that the 2 old roads seem to meet up in? Maybe this road was abandoned when the county acquired this land for the county park in 1965. Hopefully can make it to the bottom and see if there's any sign of these old roads connecting as it appears on the hill shade map, I think I got within 100 yds/m of the bottom. About the USGS HTMC: https://www.usgs.gov/programs/national-geospatial-program/historical-topographic-maps-preserving-past View/download maps on the TopoView site: https://ngmdb.usgs.gov/topoview/ I used the 1897 Palo Alto quadrangle or the 1900 historical topo as listed in GaiaGPS: https://www.gaiagps.com/ More to come... Subscribe for more content like this Comment, rate, share & click the bell icon And as always, thanks for watching ... https://www.youtube.com/watch?v=n06zWpglQXM