We Only Think We Know the Truth About Salt

WHY have we been told that salt is so deadly? Well, the advice has always sounded reasonable. It has what nutritionists like to call “biological plausibility.” Eat more salt and your body retains water to maintain a stable concentration of sodium in your blood. This is why eating salty food tends to make us thirsty:…

HubbleSite – NewsCenter – Hubble to Use Moon as Mirror to See Venus Transit (05/04/2012) – Release Images

I love a good infographic. HubbleSite – NewsCenter – Hubble to Use Moon as Mirror to See Venus Transit (05/04/2012) – Release Images. Similar:Google Docs MLA Style Works Cited Class ActivityI have rarely been satisfied with spendi…AcademiaExodus From an Elsevier Neuroscience JournalOne of the world’s largest scientific pu…AcademiaDeath Comes for the Microbot — Flash Fiction…

Khan Academy and the Effectiveness of Science Videos – YouTube

Interesting implications for the flipped classroom.  If students think they already understand something, they’ll tune out of a video lecture. Students watched a science video they frequently described as “clear,” but in a post-test it turns out the video had actually confirmed their incorrect assumptions. When students watched a second video that first presented and…

There are giant feathered tyrannosaurs now… right?

Regular readers will perhaps know that I (and others) have been saying for a while that Mesozoic Earth was not the global hothouse that many have long assumed. There’s evidence for cool continental interiors and poles during parts of the Jurassic and Cretaceous (Barron & Washington 1982, , Sloan & Barron 1990, Sellwood et al.…

Shepard Fairey Pleads Guilty Over Obama ‘Hope’ Image

The street artist Shepard Fairey, whose “Hope” campaign poster of Barack Obama became an enduring symbol of his last presidential campaign, pleaded guilty Friday to a charge stemming from his misconduct in trying to bolster claims in a lawsuit over which photograph had been used as a basis for the poster. Shepard Fairey Pleads Guilty Over…

The myth of the eight-hour sleep

An interesting thing to read when I find myself awake in the middle of the night. In 2001, historian Roger Ekirch of Virginia Tech published a seminal paper, drawn from 16 years of research, revealing a wealth of historical evidence that humans used to sleep in two distinct chunks. His book At Day’s Close: Night…