When we walk, the ground’s resistance helps propel us. Similarly, flying or swimming near a surface is easier due to ground effect. Most of the time swimmers don’t get that Keep reading
Tag: jellyfish
Flying Beetles, Stinging Nettles, and Jellyfish
In the latest JFM/FYFD video, we tackle some of the less pleasant aspects of summer weather: stopping invasive insects, understanding how plants dispense poison, and looking at the physics behind Keep reading
Caught in a Whirl
View this post on Instagram #menorca #bubblering #jellyfish #freedive #goproes #gopro @goproes @gopro @angels.of.the.sea A post shared by Victor de Valles (@victordevalles) on Jun 6, 2017 at 12:15am PDT Vortex Keep reading
How the Jellyfish Stings
Many jellyfish are capable of venomously stinging both their prey and their predators. The stings originate from specialized cells in their tentacles called nematocysts (middle image) that, when activated, rapidly Keep reading
Fluids Round-Up
New year, new (or renewed) experiments. This is the fluids round-up, where I collect cool fluids-related links, articles, etc. that deserve a look. Without further ado: Above is a new Keep reading
The Upside-Down Jellyfish
The upside-down jellyfish Cassiopea lives along the sea bottom in coastal regions. As its name suggests, the jellyfish rests upside-down with its bell against the sea floor and its frilly oral Keep reading
The Upside-Down Jellyfish
The upside-down jellyfish, Cassiopea, rests its bell against the ocean floor and points its frilly oral arms up toward the sun for the benefit of the symbiotic algae living on Keep reading
Fluids Round-up – 13 October 2013
There were so many good fluids links this week that I decided for an off-week fluids round-up. Here we go! Jefferson Lab has a cool demo on how to make a cloud Keep reading
Jellyfish Flow
Florescent dye reveals the flow pattern of ocean water around a swimming jellyfish. Some researchers posit that fluid drift associated with the swimming of marine animals may be as substantial Keep reading