The Languages Of Iran

I’ve learned people are made of layers and sometimes you have to wait until the next one is revealed.

@sixwordssayitall (via sixwordssayitall)

In 1941, Swiss engineer George de Mestral noticed after a hunting trip that burrs from burdock plants stuck to his pants and his dog’s fur. 

He took the seed and looked at them through a microscope to find that this seed attaches to animal fur via the hooks on its surface to improve distribution.

                               Source: All of Nature on Blogspot

These hooks would latch onto anything loop-shaped, such as the fibers in his pants and his dog’s tangled fur. This inspired him to come up with the ‘Velcro’.

Velcro is a bio-mimicry of this burrs with small flexible hooks attached on its surface to attach to fluffy surfaces.

Although it goes by the name Velcro the generic name is a  hook-and-loop fastener)  

And depending on the load that needs to be held there are different types of hooks that are available:

The sound that the velcro makes when you rip it apart is oddly satisfying. It is made when the loops are ripped apart from the hooks.

It was always in my head that the hooks or the loops would break whenever you would rip it apart. But turns out, they are extremely flexible.

                                                Source

For a long time I believed that this was the end of the story and that’s how far we had gone. But recently when I was trying to mount a board to the wall, I came across the 3M dual lock fasteners.

These use a mushroom shaped hook on both the sides to snap together in place.

                                                  Source

And evidently it turns out the mushroom fastener design were inspired from dragonflies who used it for stability during mating (check source video above for more).

This is great, but since this is made of plastic this surely would fail at higher temperatures. You need something robust to handle higher temperatures, and this is where the Metaklett comes into the picture:

A square metre of this fastener, called Metaklett (made of steel), is capable of supporting 35 tonnes at temperatures up to 800 ºC,  (Video)

There is something exotic in the blend of nature and technology that is manifested in the Velcro, I just cannot put my hand on what it is.

Have a great day!

https://www.instagram.com/thepersonalquotes/

Can we talk? Starting a career in science communication

“Here is how science is relevant and has an impact on your life, and more importantly, here is how it can empower you.” ~ Mónica Feliú-Mójer

In this week’s featured podcast, “Sci on the Fly,” our own AAAS Science and Technology Policy fellow Allyson Kennedy interviews neurobiologist Mónica Feliú-Mójer, communications and science outreach director at Ciencia Puerto Rico. 

We’ll let them take it from here: bit.ly/2ITDur3   

Above:  Mónica I. Feliú-Mójer delivering the keynote talk at the University of North Carolina STEM Diversity conference,  Credit: Katherine Gale Stember Feliú-Mójer is also associate director for diversity and communication training at NSF-funded iBiology, where she produced a series of videos that is rethinking the narrative of “diversity in science”: https://goo.gl/3xmTET Below:  Allyson Kennedy, Ph.D., a developmental biologist and 2017-18 Science & Technology Policy fellow at NSF, in The Dickinson Lab at Virginia Commonwealth University, where she did her graduate and postdoctoral work,  Credit: Allyson Kennedy, Ph.D.   

https://www.nsf.gov/od/oia/activities/aaasfellows/bios/kennedy.jsp

Above: Kennedy at Virginia Commonwealth University, where she led one arm of a multidisciplinary project investigating the effects of e-cigarettes on embryonic development,  Credit: Leah Small, VCU Public Affairs https://www.aaaspolicyfellowships.org/ Below: Feliú-Mójer filming a segment for Univision that featured Latinxs in higher education. She is showing the camera the model organism she used for her PhD research, the nematode C. elegans, Credit: Mónica I. Feliú-Mójer, Ph.D 

it’s really not as bad as you might think!

honey is the only food product that never spoils. there are pots of honey that are over five thousand years old and still completely edible

Cultures are defensive constructions against chaos, designed to reduce the impact of randomness on experience.

Mihaly Csikszentmihalyi (via inthenoosphere)

a great ally, or perhaps a great threat.

what is a god to a scientist?

A couple of springboard notched stumps spotted in the field yesterday. Evidence of early 20th century logging activity.

1-800-ARE-YOU-SLAPPIN