Browsing Tag



Women in science illustrated by Rachel Ignotofsky

March 9, 2015


Rachel Ignotofsky from Kansas, MO often combines her passion for illustration and science in her work. Recently, she created series of drawings celebrating women who contributed to modern science. As she features Grace Hopper, Marie Curie and Jane Goodall, Rachel hopes “to inspire curiosity in young women to ask questions about the world we live in and be the one who finds out the answers”.

See more of Rachel Ignotofsky’s work here or buy her prints on Etsy.

patricia_bath marie_curie  rosalind_franklin jane_goodall mary_anning valentina_tereshkova

Geography, Travel Inspiration  • 

The mystery of sailing rocks finally solved

August 31, 2014

“Sailing stones” on Racetrack Playa in Death Valley have long been a mystery. Everyone who visited this place had their own theory why the rocks move on this flat and dry land.

Some thought they moved on rainy days, when the ground was slippery enough for strong winds to transport them. Others suggested that they sailed when the valley was covered in ice.

Almost all the theories suspected that strong winds were the cause of “sailing stones”, but as it came out, wind had little to do with it. A team led by Richard Norris of the Scripps Institution of Oceanography carried out a long and actually quite boring experiment involving rocks with motion-activated GPS units and some long camera lens. They sum up their discovery in this short film:

Here’s what they observed: on some winter days the playa fills with shallow water which doesn’t cover the rocks, but is deep enough to form very thin ice. When the sun comes up, the ice starts melting and breaking, at the same time pushing the stones slowly. This usually happens on sunny days with light breeze, but the movement is so slow that it’s very hard to observe.

Anyways, another scientific success! And though the sailing stones aren’t so mysterious anymore, they will continue to amaze and attract lots of visitors. Take a look at some of the most amazing shots of Racetrack Playa I’ve found.

StarTrail dan carr

Photo: Dan Carr

from the frost max vuong

Photo: Max Vuong