Scripps Institute of Oceanography projects that next month its monitoring station will for the first time measure CO2 at 400 parts per million.
Atmospheric CO2 has risen from 280 parts per million before the Industrial Revolution. 400 ppm is an arbitrary milestone that we'll blow right past on our way to 450 ppm within a few decades. This is an unprecedentedly fast rate of increase and it's getting faster. Not all measuring stations are exactly the same: A NOAA station in the Arctic measured CO2 at 400 ppm last year. [more inside]
posted by Sleeper
on Apr 25, 2013 -
Last fall, the Canadian Space Agency asked students to design a simple science experiment that could be performed in space, using items already available aboard the International Space Station. Today, Commander Chris Hadfield
conducted the winner for its designers: two tenth grade students, Kendra Lemke and Meredith Faulkner, in a live feed to their school in Fall River, Nova Scotia. And now, we finally have an answer to the age-old question, What Happens When You Wring Out A Washcloth In Space? [more inside]
posted by zarq
on Apr 18, 2013 -
Is Psychometric g a Myth?
- "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth
approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g
." [more inside]
posted by kliuless
on Apr 11, 2013 -
"Brain training games don't actually make you smarter.
" Looking at recent meta-analyses and replication attempts of studies showing increased cognitive abilities gained from brain-training games, the New Yorker article comes to the conclusion that the results are suspect and these games haven't been shown to improve cognitive abilities broadly. Currently, brain training is a multi-million-dollar business.
posted by tykky
on Apr 9, 2013 -
The Cambridge University Library houses the world's largest collection of Charles Darwin's letters: more than 9,000 of the 15,000 letters he is known to have written and received in his lifetime. They've been posting them online since 2007 (previously on MeFi)
, in the Darwin Correspondence Project
, where we can now read and search the full texts of more than 7,500 letters, and ﬁnd information on 7,500 more -- all for free. This weekend, they added nearly all of the Darwin-Hooker letters
: Over 1400 pieces of correspondence between Darwin and his closest friend, botanist Joseph Hooker. [more inside]
posted by zarq
on Mar 31, 2013 -
The Forces Of The Next 30 Years - SF author and Mefi's Own
Charles Stross talks to students at Olin College about sci-fi, fiction, speculation, the limits of computation, thermodynamics, Moore's Law, the history of travel, employment, automation, free trade, demographics, the developing world, privacy, and climate change in trying to answer the question What Does The World Of 2043 Look Like?
posted by The Whelk
on Mar 27, 2013 -
Science & the City is the public gateway to the New York Academy of Sciences. We publish a comprehensive calendar of public science events in New York City, host events featuring top scientists in their fields, and produce a weekly podcast covering cutting-edge science. Meanwhile, the American Museum of Natural History presents over 200 public programs each year including workshops, seminars, lectures, cultural events, and performances. Museum lectures are presented by scientists, authors, and researchers at the forefront of their fields. These engaging sessions often reveal the findings of the Museum's own cutting-edge research in genomics, paleontology, astrophysics, biodiversity, and evolutionary biology and complement the science behind the Museum's world-famous cultural and scientific halls and special exhibitions. Now many are available in podcast form. [more inside]
posted by Blasdelb
on Mar 26, 2013 -
The concept of nothing is as old as zero itself. How do we grapple with the concept of nothing? From the best laboratory vacuums on Earth to the vacuum of space to what lies beyond, the idea of nothing continues to intrigue professionals and the public alike.
Join moderator and Hayden Planetarium Director Neil deGrasse Tyson
as he leads a spirited discussion with a group of physicists, philosophers and journalists about the existence of nothing. The event, which was streamed live to the web, took place at the American Museum of Natural History on March 20, 2013. [more inside]
posted by lazaruslong
on Mar 25, 2013 -
The Hidden Life Of the Cell (57:24)
There is a battle playing out inside your body right now. It started billions of years ago and it is still being fought in every one of us every minute of every day. It is the story of a viral infection - the battle for the cell. This film reveals the exquisite machinery of the human cell system from within the inner world of the cell itself - from the frenetic membrane surface that acts as a security system for everything passing in and out of the cell, the dynamic highways that transport cargo across the cell and the remarkable turbines that power the whole cellular world to the amazing nucleus housing DNA and the construction of thousands of different proteins all with unique tasks. The virus intends to commandeer this system to one selfish end: to make more viruses. And they will stop at nothing to achieve their goal. Exploring the very latest ideas about the evolution of life on earth and the bio-chemical processes at the heart of every one of us, and revealing a world smaller than it is possible to comprehend, in a story large enough to fill the biggest imaginations.
You may be familiar with molecular movies from my two previous megaposts collecting them, but this extended documentary uses original animation that is collected into a coherent educational narrative and is just so fucking gorgeous. Enjoy. [more inside]
posted by Blasdelb
on Mar 24, 2013 -
What do 3D printing, jelly, liver transplants, chainmail, dental fillings, ferrofluids, and the Six Million Dollar man have to tell us about our future? Materials scientist and engineer Mark Miodownik lets us know in this Royal Institution lecture
posted by cthuljew
on Mar 22, 2013 -
An intriguing essay
on how young women in Georgian England were able to do science by hiding in the pursuits of the domestic arts.
"Women didn’t find it easy to participate in late eighteenth century science. Experimentation and discovery were not easily compatible with the ideals of domestic femininity – but there were women who rejected these social expectations and became active and renowned."
posted by salishsea
on Mar 20, 2013 -
Extinction got you down? Try de-extinction! Our species has played a role in the extinction of ... many other species. But now some scientists are proposing a radical turn of the tables: Bringing lost species back from the dead. How to Resurrect Lost Species
. [more inside]
posted by heyho
on Mar 16, 2013 -