Henrietta’s Tumor

hela-cellsFor my students who have read, or are reading, The Immortal Life of Henrietta Lacks – the excellent RadioLab interview with author Rebecca Skloot:

The Periodic Table (in order nonetheless!)

This ASAP Science video on the periodic table is a thing of beauty, joining the  Tom Lehrer Elements song, illustrated using Google, and Lehrer’s song as sung by Daniel Radcliffe (Harry Potter), as top nerd entertainment on this website.

(And the song is available on iTunes, too!)

Doughnut mitosis



Mitosis3Cellular Mitosis
Illustrated with Krispy Kreme donuts
Kevin Van Aelst – 2005

History of the Heimlich Maneuver

From the fantastic folks at RadioLab:

And a visual history too!


Amazing time-lapse movie of new Bay Bridge

I drove across the new Bay Bridge on Thursday night, and it’s a beautiful, graceful structure.

This time-lapse movie of the building of the Bay Bridge was created by Earth Cam, using 12 cameras. The four-minute movie is the result of 6 years of photography from 42 preset angles.

The live-streaming video cameras, set with high definition time-lapse systems, documented the progress of the $6.4 billion bridge project.

How cute is this little guy?


For the first time in 35 years, scientists have discovered a new carnivorous mammal in the Americas.

The two-pound Olinguito looks like a tiny red-furred cross between a raccoon and a house cat. It lives in the trees of the Andean cloud forest in Ecuador and Colombia, where it is active at night.

Researchers have found more than two dozen examples of the Olinguito that are in private collections, but were incorrectly labeled. There is a report one was even in a U.S. zoo in captivity in the 1960s, where zookeepers were mystified by why it refused to breed with its peers (they were the wrong species, silly people!).

A member of the raccoon family, the Olinguito’s more commonly known cousin is the Olingo, which is slightly larger and a different color.

The existence of the Olinguito as a separate species was proven through anatomical and DNA evidence.

The last discovery of a carnivorous mammal on the plant was in 2010 on Madagascar.

You can read more about the Olinguito on the Smithsonian magazine website.

Oakland Kids Rock Attendance

With the help of former Oakland Tech student and now Seattle Seahawks running back Marshawn Lynch, Oakland Unified School District has created this cool video to emphasize the importance of good attendance.

A strawberry banana slug!

pink slug picture

All the banana slug fans at UC-Santa Cruz may blush with envy when they see their newest known relative. This species was recently discovered on an Australian mountain. The slugs make their home among red Eucalyptus leaves on the ground, which might explain their vivid coloring. The bright pink that makes them stand out among their yellow-toned banana slug brothers, might actually be a form of camouflage in their environment.

The slugs can grow to be 8 inches long!

Read more about it on the National Geographic website.

How do you wring out a wet towel in space?

Orbiting Earth on the International Space Station, a representative of the Canadian Space Agency answers this practical question:

Why music can give you goosebumps and chills