#treadmill

#treadmill

Image Competition Winners Show the Diversity of Ecological ScienceThe image above by Kristen Brown shows a school of jackfish swimming in a spiral at the Great Barrier Reef. It was the overall winner in the 2021 photo competition from the scientific journal BMC Ecology and Evolution. The picture also won in the category Conservation Biology. The competition attracted entries from researchers all around the world eager to use their creativity to highlight their work and capture the diversity of the planet's flora and fauna. BMC Ecology and Evolution invited anyone affiliated with a research institution to submit to one of the following six categories: ‘Conservation Biology', 'Evolutionary Developmental Biology and Biodiversity', 'Behavioural Ecology', 'Human Evolution and Ecology', ‘Population Ecology' and 'Ecological Developmental Biology'.Our Senior Editorial Board Members lent their expertise to judge the entrants to the competition, selecting the overall winner, runner up and best image from each category. The board members considered the scientific story behind the photos submitted in addition to their artistic judgement (Fig. 1).#jackfish #fish #biology #photography #photocompetition

Cylinder 'Levitates' on an Oil-Coated Belt Running Like a Vertical TreadmillHere’s a surprising way you can defy gravity with a metal cylinder, a vertical treadmill and oil.Mohit Dalwadi at the University of Oxford, UK, and colleagues experimented with cylinders of various masses and several different treadmill belt speeds to model the conditions at which the cylinder will “levitate” whilst rotating on the oil-slicked belt.#fluiddynamics #levitation #physics #cylinder #oil #treadmill #lubrication