Thousands of animal species use toxic chemicals to defend themselves from predators. Snakes have blood clotting compounds in their fangs, the bombardier beetle has corrosive liquid in its abdomen and jellyfish have venomous, harpoon-like structures in their tentacles. But how do these animals survive their own poisons? Continue reading
An experiment on how turbulent convection in Earth’s core makes a magnetic field Continue reading
The resonant frequencies of your vocal tract change when you breathe in a lungful of helium. Now, here’s how and why helium affects your voice.
Source: Why Does Helium Affect Your Voice?
Antarctica is a vast and dynamic place, but radar technologies — from World War II-era film to state-of-the-art miniaturized sensors — are enabling scientists to observe and understand changes beneath the continent’s ice in unprecedented detail. Join radio glaciologist Dustin Schroeder on a flight high above Antarctica and see how ice-penetrating radar is helping us learn about future sea level rise — and what the melting ice will mean for us all.
An airbag can save your life, but if improperly manufactured, it could mean your death. At least five people have died after airbags made by Japanese company Takata exploded during deployment in crashes, bombarding passengers with sharp metal fragments. Continue reading
Breathe, the British beer shortage is more about the carbon dioxide than the beer. But CO2 is used in more businesses than you may think. Continue reading
YES! The Chemistry department at the University of Waterloo is doing another collaborative periodic table project! If you missed out on participating in our 2011 Periodic Table Project, this is your opportunity to have your students celebrate and be part of a worldwide initiative.
Click on the source for more details Continue reading