Behold, close-ups of the sand from around the cosmos
Think you've seen sand? You haven't seen sand.
- Microscopic photography exposes the beauty and strangeness of sand.
- Water wave action produces a startling variety of sand grains.
- That stuff between your toes is a lot more interesting than you might think.
We typically refer to grains of sand as uncountable tiny bits of rock whose most interesting characteristic is just how many of them there are. Like stars in the sky. We do them a disservice. Even the Oxford Dictionary defines them nearly as "A loose granular substance, typically pale yellowish brown…"
Scientist, author, teacher and photographer Gary Greenberg knows better. This doctor of developmental biology invents and patents high-definition, three-dimensional light microscopes. He's the founder of Edge-3D, for which he develops innovative 3D imaging devices — some of his technology is currently in use on the International Space Station.
Since 2011, Greenberg's been photographing everyday objects whose beauty and complexity is revealed only when they're magnified. His photographs of sand reveal a world of fascinating shapes and colors which we had no idea existed. High-quality prints of his images are available for sale on his website.
Greenberg explains what we see in each of photo. (We've edited his text slightly.)
This image is a handful of sand grains selected from a beach in Maui and arranged onto a black background. The colors and shapes of these tiny grains of sand are surprisingly different and astonishingly beautiful, each with its own individual character.
#2. Hamoa sponge spicule
Elegant beauty in a sponge spicule fragment from a glassy sponge found in sand from Hamoa Beach, Maui, Hawaii.
3. Okinawa, Japan puffy stars
These are star-shaped, calcium carbonate shells, or "tests," produced by tiny forams, single-celled ocean organisms. Cute sand grains?
4. Lunar sand
Apollo 17 astronauts discovered this "orange soil" on the rim of Shorty Crater in the Taurus Littrow Valley. These tiny, glassy orange spherules originate from a fire-fountain volcano that erupted over 3.8 billion years ago.
5. Plum Island garnet grains
These come from Plum Island, Rowley, Massachusetts, the northernmost barrier island in the United States. Its beach gets its pink color from garnets in the sand. Denser than most other sand grains, they get left behind as the waves sweep less dense material away.
6. Great Bahama Bank ooids
There are three areas in the world where ooids are created from tidal currents that keep mineral grains in constant motion. This results in carbonate precipitation forming around them. One of these locations is the Great Bahama Bank — these come from Joulter Cays, located about ten miles north of Andros Island in the Bahamas.
7. Corsican sand mask
A single grain of sand from the island of Corsica, France, looks like a mask. Or an Angry Birds pig snout.
8. Sand from South Point, Hawaii
These grains are from South Point on the Big Island of Hawaii. The translucent green grains are olivine — at South Point on Mauna Loa's southwest rift, the pounding surf erodes a forty-nine-thousand-year-old volcanic cinder cone made of olivine. The deep-red grain (upper left) is volcanic rock.
9. A tiny sapphire in Japanese sand
There appears to be sapphire crystal in this sand from Japan. Who knows what you'll find under your feet if you look?
- Images Of Sand Grains Through A Microscope - Business Insider ›
- This Is How Sand Looks Magnified Up To 300 Times | Bored Panda ›
- Sand Looks Unbelievably Cool Under a Microscope | WIRED ›
Former president of the ACLU Nadine Strossen discusses whether our society should always defend free speech rights, even for groups who would oppose such rights.
- Former ACLU president Nadine Strossen understands that protecting free speech rights isn't always a straightforward proposition.
- In this video, Strossen describes the reasoning behind why the ACLU defended the free speech rights of neo-Nazis in Skokie, Illinois, 1977.
- The opinions expressed in this video do not necessarily reflect the views of the Charles Koch Foundation, which encourages the expression of diverse viewpoints within a culture of civil discourse and mutual respect.
Want to be smarter than you were yesterday? Learn to have better conversations using these 3 design principles.
- What is a great conversation? They are the ones that leave us feeling smarter or more curious, with a sense that we have discovered something, understood something about another person, or have been challenged.
- There are 3 design principles that lead to great conversations: humility, critical thinking, and sympathetic listening.
- Critical thinking is the celebrated cornerstone of liberalism, but next time you're in a challenging and rewarding conversation, try to engage sympathetic listening too. Understanding why another intelligent person holds ideas that are at odds with your own is often more enlightening than merely hunting for logic errors.
A consortium of scientists and engineers have proposed that the U.S. and Mexico build a series of guarded solar, wind, natural gas and desalination facilities along the entirety of the border.
- The proposal was recently presented to several U.S. members of Congress.
- The plan still calls for border security, considering all of the facilities along the border would be guarded and connected by physical barriers.
- It's undoubtedly an expensive and complicated proposal, but the team argues that border regions are ideal spots for wind and solar energy, and that they could use the jobs and fresh water the energy park would create.
The reason one diet does not suit all may be found in our guts.