Author Archives: Dustin - Page 34

Tetrachromacy and John Cavil’s wish to see gamma rays

Reshared post from Dustin Wyatt

This story reminded me of something John Cavil said on Battlestar Gallactica:

I don’t want to be human. I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter. Do you see the absurdity of what I am? I can’t even express these things properly, because I have to — I have to conceptualize complex ideas in this stupid, limiting spoken language, but I know I want to reach out with something other than these prehensile paws, and feel the solar wind of a supernova flowing over me. I’m a machine, and I can know much more, I could experience so much more, but I’m trapped in this absurd body.

From the article:

She’s also a tetrachromat, which means that she has more receptors in her eyes to absorb color. The difference lies in Antico's cones, structures in the eyes that are calibrated to absorb particular wavelengths of light and transmit them to the brain. The average person has three cones, which enables him to see about one million colors. But Antico has four cones, so her eyes are capable of picking up dimensions and nuances of color—an estimated 100 million of them—that the average person cannot. “It’s shocking to me how little color people are seeing,” she said.

This Woman Sees 10 Times More Colors Than The Average Person
A unique genetic mutation and a well-wired brain mean that Concetta Antico is like no other artist on Earth.

Originally posted on Google+ · May 15, 2015

David Hull on when humans engage the brain

The rule that human beings seem to follow is to engage the brain only when all else fails – and usually not even then.

David Hull, Science and Selection: Essays on Biological Evolution and the Philosophy of Science

Originally posted on Google+ · May 11, 2015

How much weight to give different types of health studies

Reshared post from Dustin Wyatt

Vox has a nice article on how much weight to give different types of health studies.

There are literally thousands of ways to design a study. When a news story suggests, "A new scientific study has found…" or a celebrity doctor begins a sentence with, "Studies show…", you need to ask, "What kind of studies?" Because "studies" are not equally reliable, they all have different limitations, and they should not be acted on in the same manner — or even acted on at all. Here's a quick guide to understanding study design that will help you navigate the often bewildering world of health research.

The one chart you need to understand any health study
Today’s study is just the latest word and must be interpreted in context of others.

Originally posted on Google+ · May 11, 2015

Two common food additives linked to obesity in mice

Reshared post from Dustin Wyatt

It's not uncommon for me to hear the exhortation to not eat processed foods.  Of course, when pressed on the why, most people delve into pseudoscience or end up admitting they're just parroting something they read.

Well here's some science!

The emulsifiers in question are carboxymethycellulose and polysorbate-80; especially in Europe and North America, they are commonly used in processed foods (mayo, ketchup, numerous sauces, ice cream, gluten-free products, fat-free products and many others) and other common products (toothpaste, detergents etc). The study conducted on mice showed that even in low concentrations, these substances drastically affect the gut bacteria which seems to lead to obesity as well as a number of gut-related problems.

Why processed foods make you fat: two common food additives linked to obesity and gut inflammation
A new study suggests that two very common emulsifiers – chemicals that stabilize foods and stop products like mayo from separating – could increase the risk of obesity and irritable bowel syndrome.

Originally posted on Google+ · May 11, 2015

Short-sightedness is rising, and time indoors may be why

Reshared post from Dustin Wyatt

Why is short-sightedness on the rise?  Too much time indoors!

After studying more than 4,000 children at Sydney primary and secondary schools for three years, they found that children who spent less time outside were at greater risk of developing myopia.

The myopia boom
Short-sightedness is reaching epidemic proportions. Some scientists think they have found a reason why.

Originally posted on Google+ · May 11, 2015

The most memorable quotes from the new Elon Musk book

Like why did you go steal Tesla’s E? Like you’re some sort of fascist army marching across the alphabet, some sort of Sesame Street robber?

The 22 most memorable quotes from the new Elon Musk book, ranked
He’s hellbent on saving humanity from itself, but he also wants to build a roller-coaster at his office.

Originally posted on Google+ · May 11, 2015

Jetpacks are the future

 (one can hope)

Originally posted on Google+ · May 11, 2015

Berlin in July 1945, in color

Originally posted on Google+ · May 7, 2015

Animated 3D view of the IC1396 nebula

I shared this all the way back in 2012, and someone else just reshared it and the notification reminded me of it.  

It's pretty frickin' cool!

Reshared post from Scott Anderson

Animated gif of IC1396, a nebula in the constellation of Cepheus. It contains the well-known Elephant's Trunk Nebula and is about 2400 ly distant. Illumined by a huge O star (HD 206267), it's one of the largest emission nebulae in the Northern hemisphere.

An emission nebula consists of a cloud of ionized gas. Lower intensity will result in a predominance of red light, as hydrogen has a low energy of ionization. Green and blue will start to emerge as the intensity of the emission rises. The dark portions in the foreground are interstellar dust blocking the light from behind.

From the artist's site, linked below:

Since astronomical objects are too far away, no real parallax can be imaged. Doe to that, I have developed a method to turn my images to various 3D-formats. My work flow is based on scientific data from the object, distance and the source of ionization are usually known. The different types of the nebulae has typical structures, pillar like formations must point to the source of ionization, the radiation pressure forms kind of hollow area, inside of the nebula, around newly born stars, dark nebulae must be at front of the emission ones to show, etc… rest of the missing information is then replaced with an artistic vision.

#sciencesunday   #scienceeveryday   #astronomy  

http://astroanarchy.blogspot.fi/2012/10/an-experimental-3d-animation-from-my.html

h/t http://thisisnthappiness.com

Originally posted on Google+ · April 30, 2015

Short-sightedness is rising, and time indoors may be why

After studying more than 4,000 children at Sydney primary and secondary schools for three years, they found that children who spent less time outside were at greater risk of developing myopia.

The myopia boom
Short-sightedness is reaching epidemic proportions. Some scientists think they have found a reason why.

Originally posted on Google+ · March 18, 2015