Quantum copies do new tricks

One of the strange features of quantum information is that, unlike almost every other type of information, it cannot be perfectly copied. For example, it is impossible to take a single photon and make a number of photons ...

Earth's massive extinction: The story gets worse

Scientists have uncovered a lot about the Earth's greatest extinction event that took place 250 million years ago when rapid climate change wiped out nearly all marine species and a majority of those on land. Now, they have ...

Quantum cats are hard to see

Are there parallel universes? And how will we know? This is one of many fascinations people hold about quantum physics. Researchers from the universities of Calgary and Waterloo in Canada and the University of Geneva in Switzerland ...

Limits for mountain trail use identified

A new study on human impact to wildlife in some of Canada's most popular national parks has identified limits at which trails can be used before ecological disturbance takes place. The study led by University of Calgary Masters ...

Domed dinosaur king of the head butt (w/ video)

Llamas can't really manage it. Giraffes aren't very good at it and while big horn sheep and muskox excel at it, it turns out a small plant eating dinosaur – the pachycephalosaur Stegoceras validum – was probably ...

How much mileage do you get from sawdust?

As vacationers gas up to hit the road this summer, they could find themselves wondering about alternative fuels and their potential to ease the strain on pocketbooks and the environment.

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