Here’s a citizen science report from Dr. John Ohab!

Let’s talk about things that frighten me and start with the mysterious creatures of the deep. I mean, really — surviving under extreme pressures and temperatures, often without sunlight, in a hostile ocean environment where you might very well be someone else’s dinner? We’ve all seen Pirates of the Caribbean. Creepy.

Still, someone needs to ensure that the marine environment is protected from various human pressures like pollution and over-fishing. That person is just not me.

That’s why I’m asking YOU to go down there on my behalf as part of Earth Dive, a global citizen science project that calls on recreational scuba divers and snorkelers to monitor the ocean for key indicator species.

When you participate in Earth Dive, your observations are recorded in a special database, called the Global Dive Log, and accessible through a clever Google mapping interface. Over time, observations are aggregated to create a Global Snapshot of the state of the world’s oceans. You can also use the satellite map feature to look for your house, which is totally cool. Importantly, everyone who contributes data is automatically added to a petition demanding that policymakers take action.

Earth Dive is what I like to call a win-win-win situation. I don’t have to be in the ocean; your hobby provides a sense of personal enrichment; and we all work together to monitor and conserve marine life on this planet.

• Topics: ocean, diving, science policy, citizen science
• Location: involves a trip
• Duration: several hours
• Cost: fee or cost
• Gear: scuba gear, snorkel, swimsuit, computer
• Level of Difficulty: difficult

Take it away, Dr. John! One of my favorite video games growing up was The Incredible Machine. This 2-D puzzle game required the player to organize a series of common household items into an absurdly complex contraption to perform a simple action (e.g., turn on a light). The playing field included both fixed and movable objects, all of which interacted through simulated physics of gravity, air pressure, heat, and contact. It was incredibly fun, and I was incredibly horrible at it. I have been looking for redemption ever since.

Crayon Physics Deluxe from Petri Purho on Vimeo.

Recently, my colleague Bioephemera introduced me to Crayon Physics, an innovative physics puzzle game that relies on nothing but your imagination, creativity, and ability to wield a miniature crayon. Watch the video above and check out the demo – you can get familiar with the basic maneuvers and even create your own levels. If you’re interested in a real challenge, Crayon Physics Deluxe is now available for a nominal fee.

I can’t promise that you’ll learn much about actual physics, nor can I promise that you will atone for past failings like me. What I can promise you is heaps of fun, over 70 different puzzles, and the opportunity to create and share your own levels over the Internet. I can also promise you a bizarre musical arrangement that mixes Gregorian chanting with that relaxing music you always hear during deep tissue massages. Thankfully, this imaginary world of oddball physics also includes volume control.

• Topics: physics, puzzles
• Location: at hom
• Duration: any
• Cost: low cost
• Gear: computer, internet
• Level of Difficulty: easy

The 109th Christmas Bird Count “Citizen Science in Action.”
Sunday, December 14, 2008 to Monday, January 5, 2009

Volunteers across America are donning binoculars to track birds and contribute to the longest-running wildlife census effort to assess the health of bird populations.

“From feeder-watchers and field observers to count compilers and regional editors, everyone who takes part in the Christmas Bird Count does it for love of birds and the excitement of friendly competition — and with the knowledge that their efforts are making a difference for science and bird conservation. Find out how to get involved.“

PROJECT SNAPSHOT

> Topics:Birds, ornithology, environment, conservation.
> Location: 15 mile radius. If one radius is not near your home, there are other ways to participate.
> Duration: Count volunteers follow specified routes through a designated 15-mile (24-km) diameter circle, counting every bird they see or hear all day (24 hours).
> Cost: $5.00
> Gear:Binoculars, pencil, paper.
> Level of difficulty: Not difficult. For beginners and experienced bird and nest watchers.

Finally, you can add that very special member to your online social network—your houseplant.

Why would a plant want to join your network? To let you know when it’s thirsty, of course. Also to regularly report on its moisture level and to periodically thank you for watering it.

The network we’re talking about is Twitter, a group-oriented “microblogging” tool. This Web service keeps networks of friends, colleagues, businesses, and total strangers in contact through barrages of short messages known as “tweets.” And everybody from Barack Obama to the New York Times to my niece seems to be Twittering these days.

So why not Phil, the wilting philodendron that lives in your bedroom?

All you need is a clever do-it-yourself kit from a company called Botanicalls (cost: $89.95). With it you can build an electronic moisture-sensing system that enables one lucky houseplant to join your Twitter group. (Have a look at one houseplant’s tweets.)

This is a fairly geeky project, involving circuit boards, capacitors, ethernet cables, and a soldering iron, among other special equipment. But the kit’s instructions look clear, deliberate, and user-friendly. For a preview, see the company’s getting started and assembly page.

FYI, Botanicalls started out several years ago with a kit that enabled your plant to contact you by telephone, which they now call the Classic kit. If you need a break while you’re building the Twitter kit, I recommend you periodically watch the hilarious video that explained the Classic. It’s at the end of this post.

And, check out this scifi short story inspired by this Science Cheerleader blog post!

PROJECT SNAPSHOT

> Topics: Biology, plants, computers, electronics.
> Location: At home, or anywhere you have a plant.
> Duration: About 20 steps to assembly, then installation and testing. Maybe one long session or several separate sessions of a few hours each.
> Cost: $89.95 for the kit, which includes the required electronic components.
> Gear: Basic tools for assembling electronics such as needle-nose pliers, soldering iron, wire snips, etc. A computer with Internet access is also needed.
> Level of difficulty: Pretty technical.

Botanicalls “Classic Kit” Video (a hoot)

The latest issue of Make magazine (number 15) is devoted to build-them-yourself, high-tech musical instruments. And the coolest of the bunch is this laser harp, at right, being played by its inventor, tech musician Stephen Hobley.

You coax out the computer-generated sounds by waving your hands to break the light beams and change their lengths.

To build a laser harp, you’ll need to be familiar with and fearless about such things as MIDI (Musical Instrument Digital Interface) technology, circuit boards, photo cells, voltage regulators, and computers. If you’re not a serious music technology geek who’s been tinkering for years in the garage, you’ll need to buy or scare up a significant amount of hardware and software.

Stephen’s article in Make does include a simpler project—a single-beam “laser theremin,” as opposed to the six-beam laser harp. But even that’s still a pretty complex gizmo.

Whether or not you dive into this project, we’re sure you’ll appreciate the sights and sounds of the harp in action. Check out Stephen’s video demo, below.

PROJECT SNAPSHOT

> Topics: Computers, electronics, music, light, sound.
> Location: At home, or in your secret laboratory.
> Cost: $19 for the plans and schematics; order from Stephen Hobley’s Web site. Significant additional cost for parts and equipment.
> Gear: Computer, MIDI utility software, software synthesizer, USB-MIDI interface, soldering equipment, insulated wire, wire cutters and strippers, multimeter, alligator leads, saw, drill, vise and clamps.
> Level of difficulty: Pretty technical.