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Natural Cleaning Tips

Remove Sticky Stuff Remove wax, stickers, tape, tar, etc. Mix equal parts coconut oil and baking soda Orange oil cleaner Armpit Stains Mix 1/4 cup baking soda with 1 tsp salt and 1 tsp hydrogen peroxide. Rub on the stain and let sit for 20-30 minutes. You can also pre-soak the shirt in a 2-1 warm water/vinegar solution for 20-30 minutes to loosen up the stain before applying the baking soda paste. Coffee or spice grinder Grind white rice. Copper tarnish Ketchup. Dirty drains Alka-seltzer. Lemon juice Rust stains: scrub lemon juice and salt on the stain. Garlic smell on hands: rub with lemon juice. Soap scum: scrub with a half of a lemon covered in salt. Vinegar Cloudy film on glasses: soak in warm vinegar for 5 minutes, then rinse and dry. If the cloudiness doesn't go away it might be etched. Clean a shower head: put nozzle in a plastic bag full of vinegar overnight. Cutting boards: scrub vinegar into wood or plastic cutting boards to...

Electronics, Robotics, ROVs, etc.

Where to get stuff: Parts Finder http://www.octoparts.com/ Components, kits, etc. http://www.kr4.us/ http://www.mpja.com/ http://www.adafruit.com/ http://www.sparkfun.com/ https://solarbotics.com/ http://www.seeedstudio.com/ http://www.makershed.com/ http://www.digikey.com/ http://www.mouser.com/ http://www.jameco.com/ http://www.taydaelectronics.com http://www.allelectronics.com/ http://www.elexp.com/ http://www.newark.com/   https://www.mcmelectronics.com/ http://www.goldmine-elec-products.com/ http://www.jdr.com/ http://www.alliedelec.com/ Tools, Materials, etc. http://www.micromark.com/ www.mcmaster.com Cheap Chinese Stuff https://www.fasttech.com http://aliexpress.com http://www.alibaba.com/   http://www.lightinthebox.com/ Hobby http://towerhobbies.com/ For Teaching Kids http://www.adafruit.com/blog/category/circuit-playground/ http://sylviashow.com/ http://makered.org/youngmakers/ General information http://makezine.c...

Converting flv to mp4

Stolen from: http://superuser.com/questions/483597/converting-flv-to-mp4-using-ffmpeg-and-preserving-the-quality To make sure the video is H.264 or MPEG4 simple profile and audio is AAC         ffmpeg -i input.flv To convert to mp4         ffmpeg -i input.flv -acodec copy -vcodec copy -copyts output.mp4 To convert to mp4 and convert audio         ffmpeg -i input.foo -vcodec copy -acodec libfaac -ab 128k -copyts output.mp4 To extract aac audio from flv         ffmpeg -i input.flv -vn output.m4a To convert aac to mp3          ffmpeg -i audio.aac -acodec mp3 -ac 2 -ab 160 audio.mp3 Edit ID3/metadata          http://jonhall.info/how_to/create_id3_tags_using_ffmpeg