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SEM image of the week: A close shave

Posted on Monday, November 14, 2011 by for SEM.

New and used razor blades. (Click on any image to magnify.)

New razor blade Used razor blade
New razor blade Used razor blade

Image credit: Glenn Elert

Answer to last week’s SEM question. Hair sample 1 – Sara. Hair sample 2 – Mert. Hair sample 3 – Joanne.

SEM image of the week: Only their hairdresser knows for sure

Posted on Monday, November 7, 2011 by for SEM.

Can you match the hair sample with the student? Answers in next week’s installment. (Click on any image to magnify.)

Student 1: Hair shaft Student 1: Dermal papilla (provides nourishment for the follicle)
Student 1: Hair shaft Student 1: Dermal papilla (provides nourishment for the follicle)
Student 2: Hair shaft Student 2: Root sheath
Student 2: Hair shaft Student 2: Root sheath
Student 3: Hair shaft Mert Keceli, Joanne Wen, Sara Saad
Student 3: Hair Shaft Image credit: Mert Keceli, Joanne Wen, and Sara Saad

SEM image of the week: Say hello to my little friend

Posted on Monday, October 31, 2011 by for SEM.

This unidentified beetle species was found intruding into a basement in Brooklyn last week. (Click on any image to view it at full resolution.)

beetle head and antenna beetle antenna closeup
Head and antenna. Close up of a couple of antenna segments
beetle legs beetle legs
End of a leg. I guess you call that a foot. Leg joints.

Image credit: Glenn Elert. Thanks to Tom Canepa for providing the subject.

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