By Daryl Janzen, Observatory Manager and Instructor, Astronomy, University of Saskatchewan
Imagine you are sitting on a train, moving at a constant speed. The blinds are drawn so you can’t tell you are moving. A light bulb hangs on a chain in the centre of the car. When someone turns it on, your human eye perceives the whole carriage lighting up.
What actually happens is that light first reaches the two sides of the car simultaneously. A moment later, the light reaches the front and back of the car, again simultaneously. The light has travelled at the exact same speed in all four directions.
Albert Einstein…
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By Arash Beidollahkhani, Research Fellow at the Global Development Institute, University of Manchester
Iran has become a test of Donald Trump’s credibility at home as well as his power abroad.
The war and rising fuel prices contributed to the Republican defeat in the recent congressional elections. That gives the president a stronger political reason to find an ending to the conflict that…
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By Charareh Pourzand, Reader, Department of Pharmacy and Pharmacology, University of Bath
After more than 30 years studying how sunlight damages skin, I find the renewed enthusiasm for deliberate tanning worrying. On social media, a trend known as “tanmaxxing” encourages people to pursue increasingly deep tans, sometimes by using UV-index forecasts to seek out the strongest sunlight and avoiding sunscreen altogether.
In the laboratory, the damage caused by ultraviolet radiation is measurable. Yet online discussions can make avoiding sunscreen sound like the healthier choice.
…
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By Robin E. Best, Professor of Political Science, Binghamton University, State University of New York
A scholar of parties and elections explains how the ‘umbrella’ Democratic and Republican parties mask differences in political preferences – and may represent voters just as well as multiparty systems.
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By Michael F. Wells, Assistant Professor of Human Genetics, University of California, Los Angeles
Why are some people hit harder by certain diseases than others? Why do some patients respond better to a treatment, while others see no effect? Biomarkers can help answer these questions.
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By Ana Santos Rutschman, Professor of Law, Villanova University
Compounding pharmacies will now be able to sell 6 popular peptides, despite the fact they have not been proved safe and effective.
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By Eric Lob, Associate Professor of Politics and International Relations, Florida International University
A two-year blockade imposed on Iran by Britain gave way to a coup and leadership change. But seven decades later, circumstances are very different.
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By Don Grant, Professor of Sociology, University of Colorado Boulder
A new study compared power plants’ carbon emissions and found government-owned plants’ emissions were much higher and less responsive to climate policies.
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By Vivek Astvansh, Associate Professor of Quantitative Marketing and Computational Data Science, Binghamton University, State University of New York
Preetinder Kaur, Assistant Professor of Marketing, University of Guelph
Pushpinder Gill, Assistant Professor of Marketing, Toronto Metropolitan University
Shoppers often greet the closure of a Walmart with dismay, while competitors find cause to celebrate.
Among critics of the big-box behemoth, a long-held assumption is that once a Walmart disappears, shoppers seeking groceries, household goods, meals and services will flow to businesses down the road.
But what if the economic downside…
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By Hinckley Jones-Sanpei, Public Policy Researcher, University of Denver
Democrats, set to take over Congress with robust majorities, will face at least one expensive obstacle to their policy agenda: a national debt that now equals the size of the U.S. economy.
Clocking in at US$32 trillion, this debt-to-GDP ratio of 100% would likely raise alarms for other countries. But it attracted relatively little attention in an election season dominated…
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