A short one but a good one. Joel and the 'bots learn what to do exactly what the title imp
A short one but a good one. Joel and the 'bots learn what to do exactly what the title implies.
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Added: 2 years ago
Views: 132,721
Buy it now on DVD at: http://richarddawkins.net/store/index.php?main_page=product_ info&cP
Buy it now on DVD at: http://richarddawkins.net/store/index.php?main_page=product_ info&cPath=3&products_id=60
DURING HIS U.S. TOUR in 2008, Biologist and bestselling author Richard Dawkins met with some of the world's leading scientists to discuss topics such as Quantum Physics, Biology, Evolutionary Psychology, Science education, religion, atheism and more. This video brings you the fascinating unedited discussions between Richard Dawkins and Nobel Prize-winning Physicist Steven Weinberg, Physicist Lawrence Krauss, Biologist and blogger PZ Myers, and Evolutionary Psychologist David Buss.
From a public conversation at Stanford University to private conversations in Austin and Minneapolis, this collection offers a rare and inspirational opportunity to observe some of today's top scientists as they discuss some of the big issues without interruption.
Credits:
Produced by Josh Timonen and Maureen Norton
Edited by Josh Timonen
Camera by Josh Timonen and Wayne Marsala
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Added: 3 days ago
Views: 8,786
Part 1 in our new weekly series dissecting the errors made by Creation Science Evangelism'
Part 1 in our new weekly series dissecting the errors made by Creation Science Evangelism's Kent Hovind in his misguided attacks on biological science.
References:
1) Merriam-Webster. 2004. The Meriiam-Webster Dictionary. Meriiam-Webster.
2) Weinberg, S. 2008. Cosmology. Oxford University Press.
3) Hubble, E. 1929. A relation between distance and radial velocity among extra galactic nebulae. PNAS 15(3):168-173.
4) Fixsen DJ, Cheng ES, Gales JM, Mather JC, ShaFer RA, Wright EL. 1996. The Cosmic Microwave Background Spectrum from the Full Cobe1 Firas Data Set. Astrophysical Journal 473:576-587.
5) Reeves H. 1974. On the origin of the light elements. Annuak Review of Astronomy and Astrophysics 12:437-470.
6) The Supernova Cosmology Project. 2003. New Constraints on ΩM, ΩΛ, and w from an Independent Set of 11 High-Redshift Supernovae Observed with the Hubble Space Telescope. Astrophysical Journal. 598:102-137.
7) Kuo HM, Goldhaber G, Perlmutter S. 1998. A study of 42 type Ia supernovae and a resulting measurement of ΩM and ΩΛ. Physics Reports 307(1):325-331.
8) Ellis GFR. 1979. The homogeneity of the universe. General Relativity and Gravitation 11(4):281-289.
9) Misner CW. 1968. The isotropy of the universe. Astrophysical Journal 151:431-457.
10) Hoyle F. 1946. The synthesis of the elements from hydrogen. Monthly Notices of the Royal Astronomical Society 106:343-383.
11) Seeger PA, Fowler WA, Clayton DD. 1965. Nucleosynthesis of heavy elements by neutron capture. Astrophysical Journal Supplement 11:121-166.
12) Bonnell IA, Bate MR. 2006. Star formation through gravitational collapse and competitive accretion. Monthly Notices of the Royal Astronomical Society 370:488-494.
13) McCaughrean MJ and O'dell CR. 1996. Direct Imaging of circumstellar disks in the Orion Nebula. Astrophysical Journal 111:1977.
14) Hazen R. 2005. Gen-e-sis: The Scientific Quest for Life's Origins. Joseph Henry Press.
15) Freeman S and Herron JC. 2007. Evolutionary Analysis, 4th ed. Benjamin Cummings.
16) Schlesinger G and Miller SL. 1983. Prebiotic synthesis in atmospheres containing CH4, CO, and CO2. I. Amino acids. Journal of Molecular Evolution 19:376-382.
17) Stribling R and Miller SL. 1987. Energy yields for hydrogen cyanide and formaldehyde syntheses: the HCN and amino acid concentrations in the primitive ocean. Origins of Life and Evolution of the Biosphere 17:261-273.
18) Miller SL. 1953. A production of amino acids under possible primitive earth conditions. Science 117:528-529.
19) Miller SL and Urey HC. 1959. Organic compound synthes on the primitive earth: several question about the origin of life have been answered, but much remains to be studied. Science 130:245-251.
20) Lee DH, Granja JR, Martinez JA, Severin K, and Ghadri MR. 1996. A self-replicating peptide. Nature 382:525-528.
21) Jeffares DC, Poole AM and Penny D. 1998. Relics from the RNA world. Journal of Molecular Evolution 46:18-36.
22) Ouelleth H. 1993. Bicknell's thrush: taxonomic status and distribution. The Wilson Bulletin. 105(4):545-572.
23) Wayne RK. 1993. Molecular evolution of the dog family. Trends in Genetics 9(6):218-224.
24) Polly PD, Wesley-Hunt GD, Heinricht RE, Davis G, and Houde P. 2006. Earliest known carnivoran auditory bulla and support for a recent origin of crown-group Canivora (Eutheria, Mammalia). Palaeontology 49(5):1019-1027.
25) Gould SJ. 1980. The Panda's Thumb. W. W. Norton.
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Added: 3 days ago
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In Saudi hands it's a predator.
http://network.nationalpost.com/np/blogs/posted/archive
In Saudi hands it's a predator.
http://network.nationalpost.com/np/blogs/posted/archive/2008 /07/17/christians-are-swine-jews-condemnable-say-saudi-textb ooks.aspx
http://www.hetvrijevolk.com/?pagina=5222&titel=Saudi_Arabia_ investing_in_Hizb_ut-Tahrir
http://www.independent.co.uk/news/uk/home-news/muslims-feel- like-jews-of-europe-859978.html
http://www.azcentral.com/news/articles/2008/07/20/20080720mo sques-europe0720.html
http://www.dailymail.co.uk/news/article-423111/Parents-anger ed-pupil-given-halal-school-meals.html
http://www.dailymail.co.uk/news/article-560231/Public-pool-b ars-father-son-Muslim-swimming-session.html
http://www.dailymail.co.uk/news/article-421414/You-swim-wear -Muslim-dress.html
http://thescotsman.scotsman.com/scotland/Apology-on-the-card s-as.4243889.jp
http://en.wikipedia.org/wiki/Undercover_Mosque
http://www.timesonline.co.uk/tol/news/uk/article4276489.ece
http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20080628 /steyn_commission_080628/20080628?hub=CTVNewsAt11
http://www.nationalpost.com/opinion/story.html?id=575536&p=1
You can download an audio version of this video at http://patcondell.libsyn.com/
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Added: 6 days ago
Views: 124,491
This is an old ALife program I wrote years ago just for fun.
Each coloured square on t
This is an old ALife program I wrote years ago just for fun.
Each coloured square on the grid is a single creature. Each creature can examine the colour of grid cells directly in contact with it (up, down, left, right, and the diagonals).
The program starts off with a bunch of randomly-generated creatures. Most of those die out very quickly, but a few manage to reproduce.
Some parts of this video are showing the program running at regular speed. Others show a 'time-lapse' mode that runs through simulation time much faster. There's no visible marker to indicate which mode is active, but you can usually tell by the amount of change from moment to moment. This video is not a single run, but a combination of several independent runs.
The creatures' genetic code contains a list of rules. Translated to English, the rules would read something like "if there's a green square above you and a food square on the right, move to the right". There are more conditions, more options, and more actions available than just that example - but that's the general idea.
There's a kind of 'gravity' that pulls everything down in the grid. Creatures can climb up and around each other to overcome gravity, but if unsupported, they will fall.
Food pellets (dark grey squares) fall into the grid at the top.
Creatures can reproduce either sexually or asexually. Their rules include actions like moving, eating, reproducing asexually, trying to reproduce sexually with a neighbour, sharing food with a neighbour, and things like that. Some other genes help determine who is willing to mate with whom, who will win in fighting encounters, and so on. The winner in a fight eats the loser.
Since food falls from above, 'species' that climb up high or build colony structures that choke off the top of the grid are rewarded well (just by getting the food, I mean - I there's no programmed reward for any particular behavior). Those stuck below them often have to get food by attacking others.
Predators can appear and wipe out all of their prey, and then go extinct themselves. All kinds of interactions like that can occur in the grid.
Creatures of the same type (or closely related) have the same colour (this doesn't mean two creatures of the same colour are necessarily closely related - but usually it's true).
Creatures can die off just from lack of food. When creatures die like this, they are 'recycled' as food pellets that fall from above. The total 'energy' budget (or food-pellet-budget) remains constant.
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Added: 1 week ago
Views: 137
Hello Jack... me thoughts!
this is a video respose to
http://www.youtube.com/watch?v=
Hello Jack... me thoughts!
this is a video respose to
http://www.youtube.com/watch?v=ahhSBNmDlUI
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Added: 1 week ago
Views: 3,385
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I call you Jeremy in this vid, and I just noticed that, that isn't your name so I sound ev
I call you Jeremy in this vid, and I just noticed that, that isn't your name so I sound even stupider than usual... I go on a bit of a rant... I do that a lot... I hope you can stay with me...
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Added: 2 weeks ago
Views: 1,222
Added: 2 weeks ago
Views: 182
It's the moment of judgment for one fool who says there is no God. Christians, get ready t
It's the moment of judgment for one fool who says there is no God. Christians, get ready to laugh as he learns his eternal fate!
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Added: 2 weeks ago
Views: 123,893
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