Welcome To My World. Check Out This New Virtual Reality Tour Of My Home On Mars, Gale Crater. It Was

Richard Feynman’s legendary lectures on physics, all fifty-two chapters, are now available to read online via Caltech.

Of course, you can always watch seven of them in video form thanks to Bill Gates.

If anyone needs me, I’ll be in my physics bunk.

Tinysaur, Tiny Dinosaur Fossil Models You Can Build Yourself

Cities as a Lab: Designing the Innovation Economy demonstrates how design can foster innovative approaches to the changing needs of American cities. The world is increasingly urbanizing and cities and their wider metropolitan areas are asserting themselves as a fundamental unit of the global economy. Cities can thrive by building transformational places that incubate creativity and adapt to future challenges and opportunities. Cities as a Lab explores the design and policy choices now creating the great places of the future: urban design interventions, visionary planning efforts, and public-private partnerships. The fabric of the city, with its people, buildings, commerce, and transportation networks, promotes relationship formation, business creation, and game-changing ideas.

The asteroid Nemesis is named after a Greek goddess who wields an apple branch, lash and sword. She is know for setting the scales right and often identified with revenge. The asteroid is in play with today & tomorrow’s cosmic weather. Good time to ask yourself who, or what, is your worst enemy and what role you play in the dynamic. And maybe make some #apple #tarts too….,

Silica nanoparticles could be used to repair damaged teeth

Researchers at the University of Birmingham have shown how the development of coated silica nanoparticles could be used in restorative treatment of sensitive teeth and preventing the onset of tooth decay.

The study, published in the Journal of Dentistry, shows how sub-micron silica particles can be prepared to deliver important compounds into damaged teeth through tubules in the dentine.

The tiny particles can be bound to compounds ranging from calcium tooth building materials to antimicrobials that prevent infection.

Professor Damien Walmsley, from the School of Dentistry at the University of Birmingham, explained, “The dentine of our teeth have numerous microscopic holes, which are the entrances to tubules that run through to the nerve. When your outer enamel is breached, the exposure of these tubules is really noticeable. If you drink something cold, you can feel the sensitivity in your teeth because these tubules run directly through to the nerve and the soft tissue of the tooth.”

“Our plan was to use target those same tubules with a multifunctional agent that can help repair and restore the tooth, while protecting it against further infection that could penetrate the pulp and cause irreversible damage.”

The aim of restorative agents is to increase the mineral content of both the enamel and dentine, with the particles acting like seeds for further growth that would close the tubules.

Previous attempts have used compounds of calcium fluoride, combinations of carbonate-hydroxypatite nanocrystals and bioactive glass, but all have seen limited success as they are liable to aggregate on delivery to the tubules. This prevents them from being able to enter the opening which is only 1 to 4 microns in width.

However, the Birmingham team turned to sub-micron silica particles that had been prepared with a surface coating to reduce the chance of aggregation.

When observed using high definition SEM (Scanning Electron Microsopy), the researchers saw promising signs that suggested that the aggregation obstacle had been overcome.

Professor Zoe Pikramenou, from the School of Chemistry at the University of Birmingham, said, “These silica particles are available in a range of sizes, from nanometre to sub-micron, without altering their porous nature. It is this that makes them an ideal container for calcium based compounds to restore the teeth, and antibacterial compounds to protect them. All we needed to do was find the right way of coating them to get them to their target.  We have found that different coatings does change the way that they interact with the tooth surface.”

“We tested a number of different options to see which would allow for the highest level particle penetration into the tubules, and identified a hydrophobic surface coating that provides real hope for the development of an effective agent.”

Our next steps are to optimise the coatings and then see how effective the particles are blocking the communication with the inside of the tooth.  The ultimate aim is to provide relief from the pain of sensitivity.

University of Birmingham

Nanotechnology World Association

A new online platform to promote women’s economic empowerment is here! UN Women and the Government of Canada recently launched an online platform, the Global Knowledge Gateway for Women’s Economic Empowerment, which aims to re-vitalize women’s economic empowerment by building connections, and providing users with tools and resources necessary to be empowered. Get the link to this exciting new initiative here: www.empowerwomen.org

What I didn’t know at the time was that this is what time is like for most women: fragmented, interrupted by child care and housework. Whatever leisure time they have is often devoted to what others want to do – particularly the kids – and making sure everyone else is happy doing it. Often women are so preoccupied by all the other stuff that needs doing – worrying about the carpool, whether there’s anything in the fridge to cook for dinner – that the time itself is what sociologists call “contaminated.” I came to learn that women have never had a history or culture of leisure. (Unless you were a nun, one researcher later told me.) That from the dawn of humanity, high status men, removed from the drudge work of life, have enjoyed long, uninterrupted hours of leisure. And in that time, they created art, philosophy, literature, they made scientific discoveries and sank into what psychologists call the peak human experience of flow. Women aren’t expected to flow.

Brigid Schulte: Why time is a feminist issue

Well! This is interesting. 

(via jillianpms)

Oh my god this is exactly what I try to explain to my husband and he never gets it. 

(via magesmagesmages)

And even if you have a good partner who is supportive, it doesn’t help as much as you might think. This sort of thing is baked into the cultural expectations of being female. 

(via gothiccharmschool)

Apple yanks drone-strike-tracking app from App Store

The app, Metadata+, was created by Josh Begley, research editor for The Intercept; Begley changed its name from Drones+ after it was rejected as “objectionable” by Apple five times.

At the time, an Apple employee told Begley that the app would never be approved if it focused on US drone strikes, but would have a chance if he “broadened his topic” because “there are certain concepts that we decide not to move forward with, and this is one.”

Metadata+ never the word “drone” – this may be how it snuck past the Apple censorship board. But seven months later, Apple has unceremoniously yanked it.

Apple: a giant corporation that gets to decide which journalism you’re allowed to access with apps on your device, and whose lawyersrepeatedly told the US government that changing this situation should be a felony punishable by five years in prison and a $500,000 fine.

Ecosystems work great – they just fail miserably. The important part of a benevolent dictatorship isn’t the “benevolent” – it’s the “dictatorship.”

Read the rest

Holy shit! The single reason Republicans have no right to exist is climate denial on behalf of energy companies.