Without notice, the waters off of California beaches will sometimes transform into a rusty-red color, driving surfers away.
It’s a massive, unpredictable bloom of single-celled, red plankton, and after an almost five-year absence, the red tide has again returned, and with it, glowing bioluminescent waves.
San Diego photographers, in long-exposure shots, captured the vivid, blue glow over the past few days, though the Scripps Institute said the bloom may now be moving north.
The tiny red creatures, called dinoflagellates, discolor the water during the day. That discoloration is most visible when the sun is directly or almost directly overhead, between 11 a.m and 1 p.m.
But in the evening, they produce a glowing, blue bioluminescence when they’re churned around by waves. It’s not known how long the bloom will last, or how far it might spread up the coast.
During red tides, the concentrations of these red, floating creatures can be as high as 20 million cells per liter,
according to the Scripps Institute of Oceanography.
See an learn more here!
Make a robot friend with Adafruit’s
CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
Join 7,500+ makers on
Adafruit’s Discord channels and be part of the community! http://adafru.it/discord
CircuitPython in 2018 – Python on Microcontrollers is here!
Have an amazing project to share? Join the SHOW-AND-TELL every
Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for
Ask an Engineer!
Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/ Maker Business — Fewer startups, and other collateral damage from the 2018 tariffs Wearables — Light as a Worbla feather Electronics — How to make your own magnetic field probe! Biohacking — The State of DNA Analysis in Three Mindmaps Python for Microcontrollers — One year of CircuitPython weeklies!
Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at
No comments yet.
Sorry, the comment form is closed at this time.