Comments

Author Comment Last activity Moderation
pdhixenbaugh "@cfastie I have 6 weeks (weekends) to get this set up and running for the lake at my summer camp. I don't have the low power timer, but I am going ..." | Read more » over 4 years ago
pdhixenbaugh "@liz it would be super cool to have a module where the participants could build it this way, and then add components or otherwise change the circui..." | Read more » about 5 years ago
pdhixenbaugh "I have never seen wires like that, and they look awesome! I would love to give my kids the choice of which style of wires to use! Also, these are ..." | Read more » about 5 years ago
pdhixenbaugh "@warren great suggestion! It rains a lot here so I'm somewhat worried about that too. Where can I find that conversation? Are there any inexpensive..." | Read more » over 5 years ago
pdhixenbaugh "Chris, thanks so much for your input. That information about memory usage is invaluable. I will plan on the non-wireless route for now. Maybe with ..." | Read more » over 5 years ago
pdhixenbaugh "I'm also looking to measure Conductivity, and I have a Riffle. So you have any advice for what sensor to buy, with the memory constraints and other..." | Read more » over 5 years ago
pdhixenbaugh "Hi Ben, checking in here -- have you used this design any further? A few folks would be very interested to see what kinds of accuracy and precision..." | Read more » almost 7 years ago
pdhixenbaugh "Thanks for this Nigel! I'm especially interested in hearing what the kids think about the limitations and the new ideas you come up with -- like th..." | Read more » almost 7 years ago
pdhixenbaugh "Also: I'm not sure if you're testing (1) Hot Tap Water vs Cold Tap Water, or (2) Hot Tap Water vs. Hot Tap Water which has cooled down. Put another..." | Read more » over 7 years ago
pdhixenbaugh "So both questions and research notes can be marked as an activity? And at some point, folks replicating the activity can post their answers? I like..." | Read more » over 7 years ago
pdhixenbaugh "Ben, thank you for that explanation, it is very helpful in understanding many of the challenges and solutions presented by conductivity field measu..." | Read more » over 7 years ago
pdhixenbaugh "Hi Ben, There is a lot to dive into here. I would really like to learn how this circuit works. I'm also new to this, and have a lot of questions. T..." | Read more » over 7 years ago
pdhixenbaugh "How did you make the figures you used in this research note? They are really well done. " | Read more » over 7 years ago
pdhixenbaugh "Re: square wave, I feel really out of my comfort zone here, but that's ok :). I know to make a square wave voltage source, you have to add up sine ..." | Read more » almost 8 years ago
pdhixenbaugh "I'll do what I can :D it might be good weekend reading. So take everything that follows from the perspective of me not knowing much about measuring..." | Read more » almost 8 years ago
pdhixenbaugh "I need a little help understanding this background. When you modulate the LED at 1 kHz, that means it's flashing on and off 1000 times a second? Ho..." | Read more » almost 8 years ago
pdhixenbaugh "Some ideas: I love the presta valve idea (I used to work in a bike shop, and we threw many of these away each day from flats). I wonder if having ..." | Read more » about 8 years ago
pdhixenbaugh "Other people have commented elsewhere how "trimmers" (capacitors with adjustable capacitance) exist, which would be a useful way to "tune" the soun..." | Read more » about 8 years ago
pdhixenbaugh "Would it be possible to have a variant using standard batteries? It's not too big of a deal to order a special battery, but in some places and situ..." | Read more » about 8 years ago
pdhixenbaugh "@Matej Lots of interesting things here! Anecdotally from the spill response team I work with, it only takes a few drops of oil to create a sheen, s..." | Read more » about 8 years ago
pdhixenbaugh "Exciting stuff! I'd second the easy AA battery option. I can solder at a basic level, but the less it's required, the less it can go wrong. I don'..." | Read more » about 8 years ago