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mcherm : scientificamerican   21

Why Don't We Forget How to Ride a Bike? - Scientific American
Three kinds of memory: episodic (what happened), semantic (facts), and procedural (how to do stuff). Procedural is not easily forgotten.
brain  via:HackerNews  ScientificAmerican 
december 2018 by mcherm
Silent and Simple Ion Engine Powers a Plane with No Moving Parts - Scientific American
He built an ion engine for an airplane -- something that most engineers thought was impossible.
invention  engineering  flight  via:HackerNews  ScientificAmerican 
november 2018 by mcherm
A Learning Secret: Don’t Take Notes with a Laptop - Scientific American
Research shows taking notes by hand captures fewer words, but is better for memory, probably because it forces the notetaker to synthesize more.
via:GregRobinson  brain  productivity  science  ScientificAmerican 
november 2018 by mcherm
End of the Rainbow? New Map Scale is More Readable by People Who Are Color Blind - Scientific American
Don't use a rainbow scale for colorizing diagrams: it is misleading to people with color vision (and sucks for those without). Use a greyscale, or else scale straight from blue to yellow if you really need color.
datavisualization  ScientificAmerican  via:HackerNews 
august 2018 by mcherm
Dear "Skeptics," Bash Homeopathy and Bigfoot Less, Mammograms and War More - Scientific American Blog Network
Skeptics are a "tribe" and they OUGHT to spend more time being skeptical about bad science than about Bigfoot.
skepticism  science  via:reddit  ScientificAmerican 
may 2016 by mcherm
Scott Aaronson Answers Every Ridiculously Big Question I Throw at Him - Scientific American Blog Network
Lots of questions about quantum computing explained incredibly well. Also a great explanation of why P=?=NP is such an important problem.
ScottAaronson  computerscience  quantumcomputing  ScientificAmerican  via:SlateStarCodex  quantummechanics 
may 2016 by mcherm
Chimps Outplay Humans in Brain Games - Scientific American
Chimps and humans played a prisoner's dilemma style game. The chimps won. They've got much better working memory than we do.
brain  animals  ScientificAmerican  via:reddit 
september 2014 by mcherm
How Dads Influence Teens' Happiness - Scientific American
Apparently, presence of an involved dad has a huge effect of delaying the onset of puberty in girls and decreasing risky sexual behavior.
parenting  via:boingboing  ScientificAmerican 
june 2014 by mcherm
What does mercury being liquid at room temperature have to do with Einstein’s theory of relativity? | The Curious Wavefunction, Scientific American Blog Network
To predict that gold is yellow or that mercury is liquid at room temperature, you need to take into account relativistic corrections to the quantum mechanical calculations of orbital size. And when you do, it works out correctly.
science  physics  chemistry  quantummechanics  ScientificAmerican  via:HackerNews 
august 2013 by mcherm
Why It’s Smart to Be Reckless on Wall Street | Guest Blog, Scientific American Blog Network
We pay huge bonuses for success and fire you for failure. That makes it advantageous to take huge risks: you either get a big payday or have to find a new job (which isn't so hard).
math  gametheory  ScientificAmerican  via:boingboing  banking 
march 2013 by mcherm
It Takes 275 Water Molecules to Make Ice: Scientific American Podcast
Wow... they can look at the NUMBER of atoms in the seed for a phase change, and it takes 275 water molecules to begin absorbing on ice frequencies, 475 and it's completely formed.
science  materialsscience  ScientificAmerican  via:HackerNews 
september 2012 by mcherm
Understanding the Brain's "Brake Pedal" in Neural Plasticity: Scientific American
There's a chemical that makes the brain less plastic and less able to grow new connections. It increases with age.
brain  ScientificAmerican  via:reddit 
february 2011 by mcherm
Slipping the 'Cognitive Straitjacket' of Psychiatric Diagnosis: Scientific American
The DSM defines psychiatric disorders. But the scientific evidence seems to suggest that it's entirely wrongheaded. For instance, the same genetic pre-dispositions lead to multiple "disorders" in one person, different "disorders" in diferent people, and even different diagnoses in the SAME person over time. But all insurance coverage and research money is based on the DSM.
science  brain  medicine  via:reddit  ScientificAmerican 
december 2010 by mcherm
Why Broadband Service in the U.S. Is So Awful: Scientific American
Claims that broadband service in the USA is expensive and poor because of lack of competition. Claims this is related to net neutrality,
netneutrality  ScientificAmerican  via:reddit 
october 2010 by mcherm
Rubik's Cube Inspired Puzzles Demonstrate Math's "Simple Groups": Scientific American
Rubik's Cube is essentially a puzzle based on group theory. Here, they chose some truly different groups and built puzzles around those.
math  games  onlinegame  via:reddit  ScientificAmerican 
may 2009 by mcherm

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