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 -
9 comments
A five-part series on the ultimate limit on technology, and how that limit could help us find other civilizations:
1 2 3 4 5 [via]
posted by cthuljew
on Dec 12, 2012 -
16 comments
In 2005, the Discovery Channel aired
Alien Worlds, a fictional documentary based on Wayne Douglas Barlowe's graphic novel,
Expedition: Being an Account in Words and Artwork of the 2358 A.D. Voyage to Darwin IV." Depicting mankind's first robotic mission to an extrasolar planet that could support life, the show drew from NASA's
Origins Program, the NASA/JPL
PlanetQuest Mission, and ESA's
Darwin Project. It was primarily presented through CGI, but included interviews from a variety of NASA scientists and other experts, including Stephen Hawking, Michio Kaku, John Craig Venter and Jack Horner. Oh, and George Lucas, too.
Official site.
Previously on MeFi. [more inside]
posted by zarq
on Sep 21, 2012 -
12 comments
"...I'm here to present to you - not lectures that are part of some curriculum; but in fact, I've combed the universe for my favorite subjects, and I'm going to spend twelve lectures bringing those favorite subjects to you." Renowned astrophysicist and television host
Neil deGrasse Tyson discusses the various aspects of our universe in twelve separate half-hour long lectures (MLYT).
[more inside]
posted by Evernix
on Nov 26, 2011 -
40 comments
Five years ago this week, the BBC started broadcasting one of the most extraordinary documentaries ever to grace television:
Planet Earth. The culmination of
five years of field work, it employed
the most cutting-edge of techniques in order to capture life in all its forms, from
sweeping spaceborne vistas to shockingly intimate close-ups -- including
many sights rarely glimpsed by human eyes.
Visually spectacular, it showcased footage shot in
204 locations in 62 countries, thoroughly documenting every biome from the snowy peaks of the Himalayas to
the lifegiving waters of the Okavango Delta, a rich narrative tapestry backed by
a stirring orchestral score from the BBC Concert Orchestra. Unfortunately, the series underwent
some editorial changes for rebroadcast overseas. But now fans outside the UK can rejoice -- all eleven chapters of this epic story are available on YouTube in their original form: uncut, in glorious 1080p HD, and with the original narration by renowned naturalist
Sir David Attenborough. Click inside for the full listing (and kiss the rest of your week goodbye).
[more inside]
posted by Rhaomi
on Mar 7, 2011 -
69 comments
Are plasma crystals alive? Cosmic dust can, in the presence of plasma, creates formations known as plasma crystals. An international team of researchers published a study in the Aug.14, 2007, issue of the New Journal of Physics (PDF here, abstract here) that indicates that these crystals may be more sophisticated than anyone realized. In simulations involving cosmic dust, the researchers witnessed the formation of plasma crystals displaying some of the elementary characteristics of life -- DNA-like structure, autonomous behavior, reproduction and evolution. [more inside]
posted by KokuRyu
on Mar 26, 2009 -
48 comments
Nature has a somewhat technical but free
supplement on stem cells (alongwith a podcast and related
blog).
posted by Gyan
on Jul 2, 2006 -
6 comments
The origin of life?! I heard from an authority in molecular biology today that a group of researchers funded by the Carnegie Institution and NASA believe they've discovered the origin of
RNA, and with that, the origin of life.
This new discovery grew out of NASA's
Deep Impact mission to study the composition of comets. Specifically, they started investigating a kind of carbon that forms in layers, with each layer slighly offset from the previous one in a helix shape. Significantly, the thickness of these carbon layers corresponds with the thickness of each twist in a strand of RNA.
It turns out that the individual building blocks of RNA are capable of bonding to this layered carbon when exposed to UV radiation. Once this has happened, apparently
formaldehyde can then bond to the building blocks of RNA on the carbon "pattern", allowing the bonded RNA to slough off into the primordial soup. Over time, some of these RNA strands could fold and bond to themselves, forming DNA. Formaldehyde, the initial bonding material, would eventually be replaced by a more chemically sophisticated substance, creating the chemical bond that we observe today in DNA.
Expect a paper on it to be released in approximately three months with all the details.
posted by insomnia_lj
on Nov 6, 2005 -
66 comments
"If time has to end, it can be described, instant by instant," Mr. Palomar thinks, "and each instant, when described, expands so that its end can no longer be seen." He decides that he will set himself to describing every instant of his life, and until he has described them all he will no longer think of being dead. At that moment he dies.
In memoriam of
Italo Calvino, who
died exactly 20 years ago.
"Calvino's novels" by his friend Gore Vidal.
Calvino's obituary by Vidal, il maestro
William Weaver's essay
on Calvino's cities, Jeanette Winterson on
Calvino's dream of being invisible, and
Stefano Franchi's philosophical study on
Palomar's doctrine of the void. More inside.
posted by matteo
on Sep 18, 2005 -
18 comments
Did the discovery of evolution lead to Darwin's agnosticism, as
claimed? Carl Zimmer
wonders. More importantly, can evolution be
reconciled with Christianity?
posted by daksya
on Aug 11, 2005 -
90 comments
The Meaning of Life according to various rather famous people (Dennett, Fukuyama, etc). I'm watching the Dennett video at the moment and it starts rather weakly, but, by midway through, is rolling along nicely. With topics like "being good without god" and "the anthropic principle" it struck me as relevant to a couple of recent
askmefi threads.
Dennett: [pause] i guess i'll say it again, more slowly...
(oh, and the player interface is rather delicate - give it time to load and click play a few times...)
posted by andrew cooke
on Oct 1, 2004 -
17 comments
