Scientists have cooled potassium gas to one billionth of a degree below absolute zero. But in the quantum world, that's actually hotter than the Sun. It's hotter, even, than infinity degrees Kelvin. Vladan Vuletić, a quantum physicist at MIT, talks about this 'Bizarro World' temperature.
My mother is Polish, which meant that during the holidays when I was a kid, we broke out the polka records and kielbasa for special occasion meals from Thanksgiving to New Year's Day. Certainly, nostalgia for those belch-y festivities of yore led me to A Grain of Truth by Zygmunt Miloszewski, a Polish mystery novel that unexpectedly turns out to be as hard-boiled as the skin around a circlet of that ubiquitous holiday kielbasa.
Burry Stander, one of the world's elite mountain bikers, was killed Thursday as he rode his bike in his native South Africa. Stander, 25, a two-time Olympian who placed fifth in his event at the London 2012 Olympics, was reportedly struck by a taxi van as he trained near his home in Shelley Beach, on South Africa's southeastern coast.
The close proximity of the accident to his childhood home apparently allowed Stander's family members, reportedly including his wife, mother and father, to arrive at the scene quickly.