Backyard Brains » Cockroach

DIY Cockroach Water Dispenser

Greg — Wed, 13 Jan 2010 22:07:46 +0000

Tired of having to dampen those sponges, and adding fresh potatoes for your cockroaches during these dry winter months? Well, this may be the solution for you. Here’s what you’ll need:

Twine (We borrowed some from Colin Stoetzner’s science video art project)
Shampoo/Mouthwash sampler bottle
Pair of Scissors
Cockroaches (Optional)

Simply poke a hole in the top of the bottle, thread the twine through, fill with water, and voilà! You have yourself a self-feeding water bottle! The twine will continually be moist, allowing your little friends to drink during the cover of night.

Special thanks to Karen Coulter for giving ByB this tip from her days studying cockraoches for the RHex Robot Project.

New Cockroach Species Arrives

Tim — Wed, 15 Jul 2009 16:03:40 +0000

We currently have used American Cockroaches (Periplaneta americana) in our experiments, but we have to order them from Carolina Biological Supply in North Carolina, and they are a bit expensive due to live animal shipping charges. No angst towards that fantastic company, but we have been looking for a local supplier that can give us cockroaches at reduced cost. Fear not! Pet Supplies Plus, within walking distance of our labs and workshops can provide us Discoid Cockroaches (Blaberus discoidalis) at ~$10/dozen! I picked some up last week, they are actually rather cute and look like giant roly-polys. Guess we’ll have some company on our roadtrip to Kansas City to visit the Kauffman Foundation…

Spikes on the OLPC

Greg — Tue, 14 Jul 2009 19:18:16 +0000

Backyard Brains is beginning to make in-roads with the OLPC (One Laptop Per Child) initiative. This week we were able to display spike waveforms from a cockroach leg in real-time on the OLPC laptop. We are using the “Measure” application to display the data. Note the spikes on the XO PC below from our prototype 3 of the Spikerbox.

There are still some features lacking that we will need to get sorted out before we can use the OLPC for experiments. We would like to be able to theshold the spikes in real time, as well as figure out how to retrieve the stored data for analysis.