Himalayan Collision Can Science Explain the Origin of Life? 4 months ago   00:13

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geographyalltheway
An excellent animation of Himalayan formation, featuring captions that date events in the formation of the Himalayas. Shown as a cut-away view of the earth, it's possible to see not only the continental collision, but also the mantle and the mountain root that is created in the collision.

Source [with Permission]: The Educational Multimedia Visualization Center of the Department of Earth Science, U.C.S.B http://emvc.geol.ucsb.edu/downloads.php

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Hissam Ullah
India first struck the Kohistan-Ladakh arc 50 Ma and then went on to collide with the Eurasian Plate at 40 Ma. The current Karakoram mountains in the north serve as boundary and the main active tectonic region. It is also indicated the orogeny caused abrupt climate change due to lack of atmosphric CO2.
lunageologist
That is kind of my point, the video indicates that the crust is dropping back toward the earth's center, and I am curious if there is evidence for this or just conjecture. If there is evidence, I'm just curious as to what that evidence is.
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Can Science Explain the Origin of Life? Himalayan Collision 4 months ago   07:11

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Darwin's theory of biological evolution helps us understand how simple life forms can give rise to complex lifeforms, but how did the first reproducing creatures come about? The origin of life needs its own explanation.

Scientists don't currently have a complete explanation for life's origins, but different labs around the globe are looking into the idea that life may have emerged from chemistry. In this animation you will learn why they are studying this idea, and you'll get to see a few of the fascinating things they have discovered.

Here are some links for further learning (organized by topic):

OVERVIEW OF CURRENT RESEARCH

Here David Deamer gives a wonderful overview of our current understanding of the origin of life. This hour long lecture is presented in clear language for all to follow:
https://ai-tube.com/videoai/_FUUsaVUKDV


SELF-ASSEMBLY

News article on the self assembly of gene-like columns: http://www.huffingtonpost.com/2013/02/12/origin-of-life-rna_n_2670326.html

Video series on the self assembly of primitive cell membranes:
http://exploringorigins.org/fattyacids.html

Video interview with chemist Jack Szostak. In it he goes over his work on self-assembling membranes and genes.
https://ai-tube.com/videoai/3BjFNELGX7j

Scientific journal exploring molecules with self-assembly properties. (You need a subscription to the journal to get past the abstract)
http://www.ncbi.nlm.nih.gov/pubmed/19879180


RNA SYNTHESIS

Video on John Sutherland's production of RNA nucleotides
https://ai-tube.com/videoai/aIaNLQqZ1vZ


EARLY FOSSILS

David Attenborough explores the lives of early organisms found in the fossil record. This video explores the evolution of early organisms but does not go over the origin of the first living things.
https://ai-tube.com/videoai/yrYcSjwwa8Z


METABOLIC PATHWAYS

This research explores a primitive metabolic pathway which could have easily formed through chemical evolution on the ancient earth (you need a subscription to the journal to get past the abstract) http://link.springer.com/article/10.1007%2Fs11084-006-9059-9


Websites for further learning:

This Interactive website outlines many of the discoveries made by life origin researchers. http://exploringorigins.org/

This website explains the research goals and findings of the Center for Chemical Evolution at Georgia Tech: http://centerforchemicalevolution.com/