Public Lab is launching a new 🎈 Mini Balloon & Kite Kit as part of Kickstarter Gold -- take a look!


Aftertherain_suzannemcdaniel_landscape2

Open Water

Main image above is by Suzanne McDaniel, and was taken at Island End River in Chelsea, MA, part of the Mystic River watershed. Suzanne's photo was one of the winners of the MyRWA photo contest.

Read more

Notes tagged with open-water

Ask a question about open-water or Subscribe to answer questions on this topic


KnowFlow: automatic water moniter

by shanlter about 1 month ago | 33 | 243 | 7

For couple of months I'm at Shanghai, working with DFRobot, a robotics...

Read more


Pearl River Monitoring in Guangzhou

by shanlter 10 months ago | 10 | 464 | 3

I paddle every week with Guangzhou International Dragon Boat Club in Pearl River. The water qual...

Read more


Build a Coquí: A Simple Water Conductivity Sensor

by akshaya 10 months ago | 6 | 842 | 4

The Coquí is a simple water conductivity sensor designed by @donblair that is designed for use...

Read more


Mapping Lead-Free Water

by smmontgom 11 months ago | 0 | 362 | 0

As I'm sure folks on this forum are aware, [lead is toxic](http://www.huffingtonpost.com/dr-mark-...

Read more



Removing ambient interference from turbidity measurements through signal modulation

by donblair over 1 year ago | 6 | 1,951 | 3

Turbidity is an optical measurement of suspended solids in solution -- a broadly useful water qua...

Read more


Photos of building Coquis in Hong Kong

by liz over 1 year ago | 0 | 881 | 1

From the time period January 21-24 [![IMG_3582.JPG](//i.publiclab.org/system/images/photos/000/0...

Read more


Pencil lead works well as an electrode material in lead analysis

by JSummers over 1 year ago | 0 | 1,680 | 7

This was a test to see if pencil lead can be used as an electrode material in electrochemical le...

Read more


Conductivity Sensing: Open Questions

by donblair over 1 year ago | 6 | 1,392 | 7

A lot of people are interested in measuring conductivity in liquids -- because it provides a u...

Read more



Riffle Water Bottle Enclosure: rubber stopper w/hole + silicone sealant: > 8 weeks!

by donblair over 1 year ago | 6 | 2,709 | 3

[photo credit: Liz Barry. Shocked cereal box credit: D'Ignazio family] We've been experimenti...

Read more


Suratá Visible -- Part I

by donblair almost 2 years ago | 2 | 1,364 | 2

Hallo! This is a long overdue first post on an amazing project that I participated in towards th...

Read more


buoy for water sensor

by DavidMack almost 2 years ago | 2 | 3,066 | 5

Create a durable, reusable buoy packaging system for water sensors: 1.) measure parameters ...

Read more


Rubba Stoppaz

by donblair almost 2 years ago | 8 | 2,681 | 3

Finally getting around to testing @mathew 's clever ideas around sealing up plastic water bottles...

Read more



Riffle: sensor board approach

by donblair almost 2 years ago | 6 | 2,584 | 3

One idea that came up in Colombia (and, really, in various forms earlier, at LEAFFEST and elsewhe...

Read more


Riffle Datalogger: quick development snapshot

by donblair almost 2 years ago | 1 | 2,237 | 1

This is an attempt to take a quick snapshot of the Riffle open hardware water monitor project,...

Read more


Wireless 001

by donblair almost 2 years ago | 4 | 2,112 | 1

[header image from dev.physicslab.org] A first pass on notes re: various options for broadc...

Read more


Dock Test!

by donblair almost 2 years ago | 0 | 1,771 | 6

Today Laura Perovich led Joe Goldbeck and me on an expedition to the Charles River to deploy a te...

Read more



Turbidity 001

by donblair almost 2 years ago | 4 | 2,922 | 2

Just wanted to gather some useful materials around turbidity -- how it's usually assessed, and va...

Read more


Buoyancy-Driven Underwater Glider

by ajawitz about 2 years ago | 12 | 5,793 | 4

I want to develop an underwater autonomous vehicle based on a design the US Navy developed for...

Read more


Riffle-328p version 0.96 :)

by donblair over 2 years ago | 5 | 3,030 | 3

Quick update on the latest design for the Riffle ... But first, a quick review: Several of ...

Read more


sensors in soda bottles

by mathew over 2 years ago | 6 | 3,047 | 2

I want to keep electronics dry while wired to underwater sensors. I did a short test of a simpl...

Read more



sketching a waterproof pop bottle sensor system

by mathew over 2 years ago | 4 | 3,362 | 0

I want to make a way to reliably put sensors through the cap of a PET bottle. the [Open Water Pr...

Read more


Dreaming of sensitive friends

by warren over 2 years ago | 1 | 1,758 | 6

I took these portraits in a session at the open water workshop at Propeller, in New Orleans, toni...

Read more


Coqui PCB + audio jack

by donblair almost 3 years ago | 0 | 1,484 | 1

[![coqui-v1.0-schem.png](https://i.publiclab.org/system/images/photos/000/007/466/medium/coqui-v1...

Read more


Conductivity Results from 3 Water Samples

by madelinebilis almost 3 years ago | 0 | 1,066 | 0

by Ariana Marini and Madeline Bilis In reference to three water samples described in a [prev...

Read more



Follow up — Group 2 Water Sample Results

by jacktemp almost 3 years ago | 0 | 970 | 0

Group 2 — Results Our, which are posted on youtube [here](https://www.youtube.com/watch?v=...

Read more


Collect 3 Water Samples for Testing

by amarini almost 3 years ago | 2 | 2,333 | 0

Samples collected by Ariana Marini & Madeline Bilis JR-368 Emerson College Data Visualizatio...

Read more


Duty Cycles & 555s --> linearity!

by donblair almost 3 years ago | 15 | 3,557 | 3

I had a great long chat with [Mark Brownawell](http://www.linkedin.com/pub/mark-brownawell/5/530/...

Read more


Coqui draft board design on Upverter

by warren almost 3 years ago | 8 | 1,871 | 1

Make a simple through-hole Printed Circuit Board for the Coqui <$5 water conduc...

Read more



Recap: Open Water Workshop, 7/12/14

by donblair about 3 years ago | 6 | 4,976 | 6

<iframe src="//player.vimeo.com/video/100778803?title=0&byline=0&portrait=0" width="700" ...

Read more


Water Quality Workshop July 12th @ MIT Media Lab

by donblair about 3 years ago | 1 | 2,315 | 0

Please RSVP here so that we can make...

Read more