what really killed the dinosaurs bbc
Bookmarked 753 weeks ago
please subscribe to the whyevolutionistrue youtube channelhttp:wwwyoutubecomwhyevolutionistruebbc documentary list:http:tinyurlcom6yayzxmbroadcast 2004 until recently most scientists thought they knew what killed off the dinosaurs a 10km-wide meteorite had smashed into the yucatan peninsula in mexico causing worldwide forest fires tsunamis several kilometres high and an 039impact winter039 - in which dust blocked out the sun for months or years it was thought that the dinosaurs were blasted roasted and frozen to death in that orderbut now a small but vociferous group of scientists believes there is increasing evidence that this 039impact039 theory could be wrong that suggestion has generated one of the bitterest scientific rows of recent timesthe impact theory: the impact theory was beautifully simple and appealing much of its evidence was drawn from a thin layer of rock known as the 039kt boundary039 this layer is 65 million years old which is around the time when the dinosaurs disappeared and is found around the world exposed in cliffs and minesfor supporters of the impact theory the kt boundary layers contained two crucial clues in 1979 scientists discovered that there were high concentrations of a rare element called iridium which they thought could only have come from an asteroid right underneath the iridium was a layer of 039spherules039 tiny balls of rock which seemed to have been condensed from rock which had been vaporized by a massive impacton the basis of the spherules and a range of other evidence dr alan hildebrand of the university of calgary deduced that the impact must have happened in the yucatan peninsula at the site of a crater known as chicxulub chemical analysis later confirmed that the spherules had indeed come from rocks within the craterchallenging the theory: a group of scientists led by prof gerta keller of princeton and prof wolfgang stinnesbeck of the university of karlsruhe begged to differ they uncovered a series of geological clues which suggests the truth may be far more complicated in short that the crater in the yucatan is too old to have killed off the dinosaursthey concentrated on a series of rock formations in mexico where the iridium layer was separated from the spherule layer by many metres of sandstone that opinion sparked a massive row as the supporters of the impact theory such as prof jan smit of vrije universiteit amsterdam rubbished keller039s ideas smit argued that the sandstone had been deposited by massive tsunami waves caused by the asteroid and so did not undermine the idea of a single impactbut keller039s team found evidence - such as ancient worm burrows - that suggested that the deposition of the sandstone had been interrupted many times they concluded that there was a gap of some 300000 years between the deposition of the spherules from the chicxulub crater and the iridium from an asteroid therefore there must have been two impacts

speculum
Bookmarked 744 weeks ago
at least we039re not them and we039re not them because of one crucial difference here people do speak out question is can you even heardo you want to live in a real mind-blowing cosmic mysteryor a cartoonapologies for the double-cheese ending but i found the lyrics just too appropriate :

what can embryos tell us about evolution
Bookmarked 793 weeks ago
science ampamp reason on facebook: http:tinyurlcomsciencereasonfacts of evolution chapter 6: what human embryos reveal about evolution---please subscribe to science ampamp reason: http:wwwyoutubecombest0fscience http:wwwyoutubecomsciencemagazine http:wwwyoutubecomsciencetv http:wwwyoutubecomffreethinker---evolution is real science:1 does the evidence support evolutionhttp:wwwyoutubecomwatchv=p1r8w_qeveu2 vitamin c and common ancestryhttp:wwwyoutubecomwatchv=sf2n2lbb3dk3 are we descended from viruseshttp:wwwyoutubecomwatchv=niswzcsmsss4 does the fossil record support evolutionhttp:wwwyoutubecomwatchv=qwvoxzpocgk5 where are the transitional formshttp:wwwyoutubecomwatchv=kftbrhg8kgqfacts of evolution:1 introductionhttp:wwwyoutubecomwatchv=43sskx-peqa2 universal common descenthttp:wwwyoutubecomwatchv=g0ugpcea8zg3 good design bad designhttp:wwwyoutubecomwatchv=1mtr3cum74a4 speciation and extinctionhttp:wwwyoutubecomwatchv=t5kumhlik4a5 how fast is evolutionhttp:wwwyoutubecomwatchv=6xgesi1egku6 what can embryos tell us about evolutionhttp:wwwyoutubecomwatchv=uazmlywepgk7 the molecules of lifehttp:wwwyoutubecomwatchv=nvjfi3chouu8 molecular evolution: genes and proteinshttp:wwwyoutubecomwatchv=ma7be3meb649 retroviruses and pseudogeneshttp:wwwyoutubecomwatchv=8zvtmgck1lo---embryo drawing refers to any representation of the illustration of embryos in their developmental sequence in plants and animals an embryo develops from a zygote the single cell that results when an egg and sperm fuse during fertilizationin animals the zygote divides repeatedly to form a ball of cells which then forms a set of tissue layers that migrate and fold to form an early embryo images of embryos provide a means of comparing embryos of different ages and species to this day embryo drawings are made in biology undergraduate developmental biology lessonscomparing different embryonic stages of different animals is a tool that can be used to infer relationships between species and thus biological evolution this has been a source of quite some controversy both now as in the past a biologist who pioneered in this field was ernst haeckel by comparing different embryonic stages of different vertebrate species he formulated the recapitulation theory this theory states that an animal039s embryonic development follows the exact same sequence as the sequence of its evolutionary ancestorshaeckel039s work and the ensuing controversy linked the fields of developmental biology and comparative anatomy into comparative embryology from a more modern perspective haeckel039s drawings were the beginnings of the field of evolutionary developmental biology evo-devothe study of comparative embryology aims to prove or disprove that vertebrate embryos of different classes eg mammals vs fish follow a similar developmental path due to their common ancestrysuch developing vertebrates have similar genes which determine the basic body plan however further development allows for the distinguishing of distinct characteristics as adults http:enwikipediaorgwikiembryo_drawing

evolution: it039s a thing - crash course biology 20
Bookmarked 707 weeks ago
hank gets real with us in a discussion of evolution - it039s a thing not a debate gene distribution changes over time across successive generations to give rise to diversity at every level of biological organizationlike crashcourse on facebook: http:wwwfacebookcomyoutubecrashcoursefollow crashcourse on twitter: http:wwwtwittercomthecrashcoursetable of contents1 the theory of evolution 1:492 fossils 2:423 homologous structures 4:364 biogeography 7:025 direct observation 8:52references for this episode can be found in the google document here: http:dftba-2oyuevolution theory biology science crashcourse genetics gene facts fossil fossil record dinosaur extinct extinction organism dorudon rodhocetus vestigial structure similarity homologous structure related relationship morganucodon fore limb hind limb vertebrate molecule dna rna chimpanzee fruit fly biogeography marsupial finches direct observation drug resistance resistance selective pressure italian wall lizard

ray comfort interview - the atheist experience 702 full episode
Bookmarked 775 weeks ago
full episode matt dillahunty and russell glasser with guest ray comfort interview with ray comfort matt and russell have a conversation quotacross the dividequot with professional apologist ray comfortthe atheist experience 702 from march 27 2011 with matt dillahunty and russell glasser this entire episode topic: quotinterview with ray comfortquot is archived on bliptv http:bliptvfile4943508you can read more about and comment on this show on the atheist experience blog: http:atheistexperienceblogspotcom201103open-thread-on-episode-702-ray-comforthtmlwhat is the atheist experiencethe atheist experience is a weekly cable access television show in austin texas geared at a non-atheist audience the atheist experience is produced by the atheist community of austin the atheist community of austin is organized as a nonprofit educational corporation to develop and support the atheist community to provide opportunities for socializing and friendship to promote secular viewpoints to encourage positive atheist culture to defend the first amendment principle of state-church separation to oppose discrimination against atheists and to work with other organizations in pursuit of common goalsvisit the aca039s official web sites http:wwwatheist-communityorg the atheist community of austin http:wwwatheist-experiencecom the atheist experience tv showmore shows and video clips can be found in the archive: http:wwwatheist-experiencecomarchivedvds of the atheist experience can be purchased via: http:wwwatheist-communityorgproductsmusic creditsintro song: quotlisten to reasonquot written and performed by bryan steeksma http:wwwmyspacecombryansteeksma http:wwwyoutubecombryansteeksmanotestheatheistexperience is a fan appreciation channel on youtubequotthe atheist experiencequot is a registered trademark of the acacreative commons license: by nc sa http:creativecommonsorglicensesby-nc-sa30

mudskipper - fish of awesomeness
Bookmarked 707 weeks ago
the japanese mudskipper is without a doubt the coolest animal to crawl this earth

natural selection - crashcourse biology 14
Bookmarked 718 weeks ago
hank guides us through the process of natural selection the key mechanism of evolutionlike crashcourse on facebook: http:wwwfacebookcomyoutubecrashcoursefollow crashcourse on twitter: http:wwwtwittercomthecrashcoursetable of contents:1 natural selection 1:272 adaptation 2:563 fitness 3:364 four principals 3:54a variations 4:01b heritability 4:17c quotthe struggle for existencequot 4:25d survival and reproductive rates 5:005 biolography 5:596 modes of selection 7:40a directional selection 8:17b stabilizing selection 8:56c disruptive selection 9:277 sexual selection 10:228 artificial selection 11:24references for this episode can be found in the google document here: http:dftba-2ankthis video uses the following sounds from freesoundorg:quot20071104forest04binauralmp3quot by dobroidequotforestbirdswavquot by herbertbolandcrashcourse science biology natural selection genetics peppered moth inherited traits population genetics charles darwin darwin on the origin of species evolution adaptation galapagos finches fitness variation phenotype heritable malthus survival rate reproductive rate crossbreeding inbreeding genotype directional selection stabilizing selection disruptive selection selective pressures sexual selection artificial selection selective breeding

holy hallucinations 21
Bookmarked 775 weeks ago
finally here039s my reply to onceforgivennowfree039s matt039s response to holy hallucinations 20 it039s taken me quite a while to make this because it was the most difficult script i039ve had to write so far not because of the quality of his arguments i should add but because of the sheer number of new subjects he introduced the original was twice as long as the final product and as it is this is the longest video i039ve ever made and give039s matt far more attention than he merits so deciding what not to address was quite a chorethe topics i would have like to have dealt with in more detail include some of his comments on the quotwhat is lifequot panel discussion some more information on abiogenesis and the evolution of proteins and more details on his example of the evolution of domestic dogs in the latter case i could have gone on for much longer but because of time constraints chose to focus on matt039s claims about information loss and not the evolutionary process itself in this instance i would have liked to include more details on: exactly why evolutionary theory predicts that these processes should be unidirectional which matt seems to think argues against it why some alleles are actually lost from these populations by processes such as genetic drift and how new ones ie information arise including numerous new mutations in extant dog breeds to provide new variation for selection to act onthe video i039m responding to quotthelivingdinosaur gets fossilizedquot can be found at:http:wwwyoutubecomwatchv=x4ppi1bglw8also thanks to everyone who took the time to give me their opinion on my animation style the majority of you were happy with it but a significant number suggested that maybe the number of images could be reduced a little i039ve tried to do that here by slowing down the speed of the images so they stay on screen for longer this obviously means less images and potential puns but on the up side it also speeds things up for me so the video takes less time to make anyway feel free to let me know if this makes things better or worse whether you can039t tell the difference or don039t give a tossfinally i039m serving on jury duty for the whole of next month and i039m not sure how balancing that with work and home will eat into my spare time so it might be up to a couple of months before you see a new video on this channel so be patient and as always thanks for your support and stay tunedthe youtubers i recommened in the video are:http:wwwyoutubecommichaelpayton67http:wwwyoutubecomdasamericanatheisthttp:wwwyoutubecomtheoreticalbullshithttp:wwwyoutubecomprofmthhttp:wwwyoutubecomitsthesuperflyif you039re somehow unaware of any of these amazing video makers then you really should check them out - oh and do let them know who sent you if you decide to subscribetheoretical bullshit039s videos on morality highly recommended:http:wwwyoutubecomwatchv=dwnw-nxeudkhttp:wwwyoutubecomwatchv=-rqkskhzrcchttp:wwwyoutubecomwatchv=-rqkskhzrccfinally the paper on the in silico simulation of the evolution of information and a java applet of the program you can play with by yourself can be found at:http:alummiteduwwwtomspapersevindexhtmlmusic: antonio vivaldi 01 flute concerto in g major flute no 15 concerto for orchestra in c major fxi no 25 concerto for orchestra in d minor fxii no 31

imagine if all atheists left america
Bookmarked 775 weeks ago
highlighting what would happen if all atheists were to leave america details of who would leave what would change and a look at other countries with virtually no atheismreuploaded from conversationwitha - http:wwwyoutubecomuserconversationwithasources:over 10 of american population are atheist:http:wwwatheistempirecomreferencestatsindexphpless than 021 of prisoners are atheist:http:holysmokeorgicr-prihtmin response to a freedom of information act request the federal bureau of prisons says that on february 12 2010 atheists accounted for just 008 of the prison population: http:bornatheistcomfilesfederal_prison_statisticspdfmajority of nobel prize winners atheist:the religiosity and religious affiliation of nobel prize winners beit-hallahmi 1989majority of university professors atheist:religion and spirituality among university scientists ecklund 2007majority of scientists atheist:http:freethoughtpediacomwikiscientists_and_atheismatheist intellectuals:http:brainzorg50-most-brilliant-atheists-all-timehttp:wwwcelebatheistscomtitle=category:atheistatheist celebrities:http:wwwcelebatheistscomtitle=main_pagepoverty rate lower among atheists:society without god zuckerman 2008http:wwwamazoncomsociety-without-god-religious-contentmentdp0814797148http:wwwsecularhumanismorgindexphpsection=libraryampamppage=pzuckerman_26_5http:wwwpitzereduacademicsfacultyzuckermanzuckerman_on_atheismpdfiq higher among atheists:http:wwwinterfaithorg20080620study-links-atheism-to-high-iqhttp:wwwtelegraphcouknewsuknews2111174intelligent-people-less-likely-to-believe-in-godhtmlilliteracy rate lower among atheists:united nations human development report 2004http:hdrundporgenmediahdr04_completepdfaverage income higher among atheists:united nations human development report 2004http:hdrundporgenmediahdr04_completepdfdivorce rate lower among atheists:http:wwwreligioustoleranceorgchr_dirahtmteen pregnancy rate lower among atheists:http:wwwamericablogcom200901red-states-dominate-teen-pregnancyhtmlabortions lower among atheists:cross-national correlations of quantifiable societal health with popular religiosity and secularism in the prosperous democracies: a first look paul 2005http:mosescreightonedujrs20052005-11htmlstd infection lower among atheists:http:wwwtimesonlinecouktolnewsukarticle571206ececrime rate lower among atheists:cross-national correlations of quantifiable societal health with popular religiosity and secularism in the prosperous democracies: a first look paul 2005homicide rate lower among atheists:cross-national correlations of quantifiable societal health with popular religiosity and secularism in the prosperous democracies: a first look paul 2005percentage of atheists in the countries mentioned:http:wwwadherentscom

atheist039s nightmare = a simple question
Bookmarked 743 weeks ago
add your annotations to the videohttp:wwwyoutubecomwatchv=neqetfhwofeampamplayer_token=16545f9165310b05become a muslim nowhttp:wwwislamreligioncomarticles204please be humanecan you disprove god brother sami zaatari once again hits the nail on the head by asking a simple question from atheists :can you disprove god so far no atheist have been able to provide a satisfying answer for more info on islam please visit :wwwmiraclesofthequrancom

what we saw at the reason rally - atheism amp religion
Bookmarked 724 weeks ago
reasontv headed down to the national mall for the reason rally no affiliation in washington dc the march 24 event was billed as the quotlargest gathering of the secular movement in world historyquot and drew a several thousand-strong crowd of damp enthusiastic unbelievers and a few protesting believers to the national mall reasontv asked a few of these folks why they bothered to gather on a rainy saturdayproduced by joshua swain interviews by lucy steigerwaldapproximately 247 minutes long go to http:reasontv for hd ipod and audio versions of this video and subscribe to reasontv039s youtube channel to receive automatic notification when new material goes live

why sexy is sexy
Bookmarked 706 weeks ago
hank delves into the scientific reasons behind why we are attracted to the people we039re attracted to it039s complicatedlike scishow on facebook: http:wwwfacebookcomscishowfollow scishow on twitter: http:wwwtwittercomscishowreferences for this episode can be found in the google document here: http:dftba-3by3scishow science biology sexual selection evolution darwin sex intercourse mate gene peacock human survival advantage health fertility bilateral symmetry waist hip testosterone ratio genetic pheromone immune system major histocompatibility complex mhc offspring attraction sexy attractive origin of species natural selection

carl sagan: you are here carl sagan tribute series part 10
Bookmarked 771 weeks ago
download the mp3 version at http:milkywaymusingscomthis video is part 10 of my continuing tribute to the late carl saganpart 1: a universe not made for us http:wwwyoutubecomwatchv=pxlpvsanwoopart 2: consider again that pale blue dot http:wwwyoutubecomwatchv=p_naqhynog0part 3: wanderers http:wwwyoutubecomwatchv=lpm-vkpikr0part 4: the gift of apollo http:wwwyoutubecomwatchv=0xuar6vbxxupart 5: the backbone of night http:wwwyoutubecomwatchv=3zb6gapg3ympart 6: the edge of forever http:wwwyoutubecomwatchv=d4tytgv1x28part 7: the great demotions http:wwwyoutubecomwatchv=z-6wxzxouv8part 8: to the sky http:wwwyoutubecomwatchv=kyt85mci-bkpart 9: darkness http:wwwyoutubecomwatchv=veiewq7rf4gpart 10: you are here http:wwwyoutubecomwatchv=p9tieubf9sspart 11: the story of everything coming soonpart 12: the blessing and the curse coming soonplaylist: http:wwwyoutubecomusercallumcglpgriduser73e5e40315ea40feexcerpts from carl sagan039s pale blue dot: a vision of the human future in space and cosmos more specifically from the chapter titled you are here i edited together the audio from the audiobook and added the video from:- apocalypse: the second world war- bbc039s planet earth- bbc039s the root of all evil with richard dawkins- bbc039s walking with cavemen- bbc039s wonders of the solar system with brian cox- carl sagan039s cosmos- discovery039s into the universe with stephen hawkingthe music is quotthe science of faithquot quotla fleurquot and quotfor love of the damequot by michael giacchino from the lost soundtrackthe carl sagan tribute series will continue please subscribe to my channel if you wish to be among the first to see my newest videosif you enjoyed this video read the magnificent book from which it originated: http:wwwamazoncompale-blue-dot-vision-futuredp0345376595ref=sr_1_1ie=utf8ampamps=booksampampqid=1278371196ampampsr=8-1also highly recommended cosmic connection: http:wwwamazoncomcarl-sagans-cosmic-connection-extraterrestrialdp0521783038ref=ntt_at_ep_dpt_11

morality in the holy bible
Bookmarked 756 weeks ago
christians frequently claim that without religion or faith we would all be immoralchristians frequently claim that the basis for western democracies and ethics are the hebrew and christian scriptureschristians frequently claim that the greatest influence on morality freedom tolerance and honest living is the holy biblequotit ain039t the parts of the bible that i can039t understand that bother me it is the parts that i do understandquot -- mark twainquotthe inspiration of the bible depends on the ignorance of the person who reads itquot -- robert g ingersollquotproperly read the bible is the most potent force for atheism ever conceivedquot -- issac asimovquotwhen i think of all the harm the bible has done i despair of ever writing anything to equal itquot -- oscar wilde this video explores the question of morality and the bible it was produced by corthew:http:wwwyoutubecomusercorthew quotwe are continually told that the bible is the very foundation of modesty and morality while many of its pages are so immodest and immoral that a minister for reading them in the pulpit would be instantly denounced as an unclean wretch every woman would leave the church and if the men stayed it would be for the purpose of chastising the ministerquot -- robert g ingersoll

rap news 9 - the economy - w ron paul amp peter joseph
Bookmarked 749 weeks ago
note to reuploaders: we ask that you please wait 48 hours from the time that we uploaded the video thanks for your support tjm links:- thejuicemedia rap news website: http:thejuicemediacom- free high-quality mp3 and lyrics: http:wwwreverbnationcomrapnews - pls consider donating if downloading mp3 : http:thejuicemediacomdonate rap news 9: 2011 hits harder than a pre-apocalyptic hangover as quotthe economyquot threatens to annihilate our stock-piles of imaginary inflated wealth spawning a battle of epic proportions as insurgent grassroots forces move in to occupywallstreet and coalitions of indignados hold their ground in athens madrid and tel aviv facing up to the riotgear batons and tazers that stand between them and a more equal redistribution of the proverbial pie but enough action and excitement it039s time for some heroic armchair philosophy: join your affable host robert foster as he attempts to shine some light on this mysterious creature quotthe economyquot is this the failure of capitalism that we are witnessing or its triumph is it the end of the end of history or yet another crazy chapter in the whimsical journey of the human experiment for the occasion we039ve pulled out the big guns: admittedly it was a tough choice deciding who to interview: we could039ve had alan greenspan on the show or the emperor himself milton friedman the first lady christine lagarde or financial buffs like gerald celente peter schiff and donald trump but to get the freshest juice we knew we had to go further - much further rap news 9 features two vip internet grandees who have uploaded gigabytes of truth via the one remaning free frequency - the internet - to feed a discerning and ravenous audience hungry for answers: us congressman ron paul and zeitgeist film-maker peter joseph whilst these two fine folk agree with each other on many things fortunately there039s no shortage of issues to rap-battle about: do we need to inject more paper into the financial furnace or do we need a different fuel entirely - more gold and less lead some say we should ditch the entire engine and replace it with something entirely new - but with what exactly is the answer to our impeding economic demise contained in shiny new cybernated inventions or might it actually require us to remember and look back to tried and tested models of economic organisation well time039s short so let the rhyme-rodeo begin as we blast off on a rollercoaster odyssey it039s the stupid economy in all its gory glory more info:- ron paul 039the one039: http:wwwyoutubecomwatchv=pchzoaieyxy - more on ron paul 2012 campaign: http:wwwronpaul2012com- more info on zeitgeist moviesvenus project: http:zeitgeistmoviecom- who is peter joseph http:wwwyoutubecomwatchv=tw9ihjnb75e support rap news to keep broadcasting rhyme and reason on the only remaining free frequency: http:thejuicemediacomdonate - thank you to everyone who has donated already - massive respect connect with us on farcebook: https:wwwfacebookcomrapnewsand twitter: http:twittercomjuicerapnews credits: rn9 has been a herculean collaborative endeavour for which we are hugely grateful to: our ineffably awesome designer zoe tame from http:visualtoniccomau for creating all the original artwork backgrounds and vectors zoe val and ellen goldie for yet more lingerie escapades lucy for val voice-over and ming for big-gonad trailer-man voice dave abbot for cutting-edge state-of-the art cgi effects animations and exteme doses of patience rosie dunlop for make-up mayhem and latex love trav and nick for lights and logistical assistance milly langworth and gilles gundermann for prop sourcing jason for not wigging out over the wigs lucy ampamp caitlin for ongoing support and to all the people who write to us harassing us about when the next episode is coming out : beat: it039s been a frankensteinian effort on the part of our local musical luminaries for the production on this episode039s original track: dan west out at tweak and twang studios http:tweakandtwangorg for phat drum sequencing jonathan dreyfus ampamp adrian sergovich for wicked orchestrations julez for zeitgeist instrumentation the original zeitgeist theme is the work of mr peter joseph - kudos download the free mp3 here: http:wwwreverbnationcomrapnews captions ampamp subtitles: many thanks to our french friends koolfy and siltaar for sync039ing english closed captions these are coming soon