A Voyage to Mars: Bone Loss in Space

Why do bones get weaker with less gravity and how can we prevent bone loss in space?

More MIT+K12 experiment videos are available here.

Welding... with Class

Welding is an important industrial process, but do you know how it works?

More MIT+K12 experiment videos are available here.

Further reading

General introductions to the philosophy of mind tend to be ahistorical and vary greatly in accessibility and coverage. E.J. Lowe covers virtually the whole range of topics in his An Introduction to the Philosophy of Mind (2000). For less coverage but more detail see Jaegwon Kim's slightly more advanced but excellent Philosophy of Mind (1996). Tim Crane's The Elements of Mind (2001) is another very good but more advanced introduction to current issues and contains one of t
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7 Summary

We have been primarily concerned to explore in a preliminary fashion the domain of the mental. We have looked briefly at various different kinds of actual and possible minds – normal and abnormal human minds, animal minds, angelic minds, and so on – and at the variety of mental phenomena – thought, perception, sensation, emotion, etc. Describing what a mind might be like is partly a matter of describing the kinds of mental phenomena that the mind in question exhibits. Conceiving of what
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6 The relations among mental phenomena

We have seen that it seems natural to say that while it is possible for machines and angels to have intellects superior to ours, it is also natural to say that
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Do Lectures: Can Poetry Change a Person?
They can be small Do’s or big Do’s or just extraordinary Do’s. But when you listen to the story of, this
is a powerful talk from Chris Henrikson founder of Street Poets Inc. An
organisation that is committed to building a community that brings
together different racial, ethnic and socio-economic segments of the
city of Los Angeles around the transformational power of the creative
process.  Chris Henrikson, Founder of Street Poets Inc.  
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Science Bulletins: Aiming High: The Search for Ultra High-Energy Cosmic Rays
The history of cosmic ray research is a story of scientific adventure. For nearly a century, cosmic ray researchers have climbed mountains, soared in hot air balloons, and traveled to the far corners of the Earth in the quest to understand these energetic particles from space. They have solved some scientific mysteries—and revealed many more. With each passing decade, scientists have discovered higher-energy and increasingly more rare cosmic rays. The Pierre Auger Project is the largest scient
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Shirley Temple reciting poetry by Rose Fyleman
From the 1935 film Curly Top. Elizabeth (Shirley Temple) recites two short poems for her uncle Edward (John Boles). The first poem, "Before," was published in Punch magazine in 1919, with the author named simply as "R.F." -- probably Rose Fyleman, a British children's poet who also wrote the second poem Shirley recites, entitled "Singing-Time." (01:04)
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HIS348 Session 3 Summer 2012
Labor in American Society with Mike Fraga 05/14/12
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General Relativity and Quantum Gravity
OpenStax College
Explain the effect of gravity on light. Discuss black hole. Explain quantum gravity.
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Breakingviews: JPMorgan's #whalefail
May 14 - Rob Cox and Breakingviews editors discuss why Jamie Dimon should take an aggressive stance on pay with JPMorgan execs responsible for the bank's trading losses.
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