All About Light

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13Cribsheet.jpg The latest addition to SEED‘s excellent Cribsheet series: Light. On one page, everything you wanted to know or remember about the electromagnetic spectrum, wave-particle duality, how light interacts with matter, how we use light to study the size, age, and composition of the universe, how light can help provide clean energy, faster computers, and efficient space travel. Check out other Cribsheets on everything from hybrid cars to nuclear power to extinction to genetics, to name a few.

Julia Whitty is Mother Jones’ environmental correspondent and 2008 winner of the John Burroughs Medal Award. You can read from her new book, The Fragile Edge, and other writings, here.

DEMOCRACY DOES NOT EXIST...

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DEMOCRACY DOES NOT EXIST...

without free and fair elections, a vigorous free press, and engaged citizens to reclaim power from those who abuse it.

In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily bluster—Mother Jones' journalism is driven by one simple question: Will America move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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