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John Knight, PhD

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Science Spectrum

Sticky, Sweet, and Purple

The mystery and science of North Carolina’s rare purple honey

May 5

Sticky, Sweet, and Purple

May 5

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Science Spectrum

Why Fresh-Cut Grass Smells Like Summer

How molecules from grass can trigger memories and nostalgia

Apr 18

Why Fresh-Cut Grass Smells Like Summer

Apr 18

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Science Spectrum

A Color Fit for Kings and Emperors

The chemistry, history, and prestige behind Tyrian purple

Mar 31

A Color Fit for Kings and Emperors

Mar 31

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Science Spectrum

There’s Chlorine in My Dramamine?!

The surprising role of chlorine in medicine (and why it’s not always bad)

Mar 21

There’s Chlorine in My Dramamine?!

Mar 21

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Science Spectrum

A Crimson Shroud: The Enigmatic Burial of the Red Queen

The science of a sacred mineral and its ties to mercury...

Mar 12

A Crimson Shroud: The Enigmatic Burial of the Red Queen

Mar 12

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Catness

My Cat, The Walking Clock

Living with a Four-Legged Feline Timekeeper…

May 4

My Cat, The Walking Clock

May 4

Published in

Science Spectrum

Like Diamonds, Teflon is Forever

How a kitchen convenience was a harbinger of chemical pollution…

Mar 6

Like Diamonds, Teflon is Forever

Mar 6

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Catness

Why Does My Cat Love to Smell My Coffee?

Cats are more like us than some might think…

Mar 1

Why Does My Cat Love to Smell My Coffee?

Mar 1

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Catness

I Had to Say Goodbye to My 18 Year Old Cat

It was harder than I expected…

Feb 24

The author’s cat in 2007.

Feb 24

Ashes to Ashes, Stardust to Stardust

Our atoms were created long before the Earth and the Sun existed…

Feb 23

The Helix Nebula. This is the product another dying star, though this star slowly released material into space rather than exploding violently.

Feb 23

John Knight, PhD

John Knight, PhD

PhD chemist, former professor, writer, and science guy. Recovering academic exploring the weird and fascinating sides of the science behind every day life.

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