David Lee, associate professor in the UNLV School of Life Sciences, will speak at an upcoming Science Café Las Vegas. His talk is titled, "Run, Walk, or Crawl to the Pub: At What Cost?" Humans are unusual bipedal apes with an evolutionary history that includes long-distance walking and running. Compared to other bipeds, humans are particularly economical and effective in walking at moderate to fast speeds. Our experiments show that economical walking of humans is largely determined by the way we interact with the ground. Although our leading leg and heel act as a brake while our trailing leg and toe push us forward into the next step, this strategy using opposing forces more than pays for itself, allowing us to achieve faster and more economical walking than other bipedal animals, robots, and even idealized models of walking.
Come join others for a lively science discussion, delicious food, and fun. Come at 6:30 p.m. to order your food and mingle. Those under 21 are welcome.