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A simple model could explain how the first cell came into being

January 11, 2011
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It’s just a thought experiment, and there’s no real way to test it just yet. But it’s the first time we even have a possible working explanation for how Earth’s first tentative steps toward life might have happened. From these humble origins, protocells could eventually turn into more complicated structures, and life could begin. It’s […]

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Posted in: Biology, Chemistry

Bad Movie Physics: A Report Card

December 29, 2010
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Space epics almost always play fast and loose with science, treating the laws of physics like suggestions. But some movies dismember Newton and Einstein with way more gusto than others. Here’s our report card for bad science in 18 movies. via Bad Movie Physics: A Report Card.

Posted in: Astronomy, Physics

Anatomy And Physiology: Fetal Circulation

November 1, 2010
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Anatomy And Physiology: Ovarian Cycle

November 1, 2010
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These diagrams put the ovarian cycle into a step-wise layout and it is much easier to understand when the certain hormones do their job.

Anatomy And Physiology: Osmolarity/Tonicity of cells in solution

November 1, 2010
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This diagram shows the relative tonicity of cellls in various solution types and the effect that the solution has on the cell. The first one shows a cell in a normal environment where the ionic concentration outside the cell and inside the cell are equal. The cell is not effected. The second one shows a […]

Anatomy And Physiology: Water Loss from Body

November 1, 2010
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These two diagrams show the amount of water loss from the body. In the second diagram, CSF is Cerebrospinal Fluid.

Anatomy And Physiology: Proportion of Body Fluids

November 1, 2010
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This diagram shows the relative proportions of body fluids. ICF is Intracellular fluid, ECF is Extracellular fluid.