How do vaccines work?

[free_thinker]

How do vaccines work? - Kelwalin Dhanasarnsombut


The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does this seemingly counterintuitive process work? Kelwalin Dhanasarnsombut details the science behind vaccines.

Lesson by Kelwalin Dhanasarnsombut, animation by Cinematic.

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[free_thinker]

The evolution of the human eye

The evolution of the human eye - Joshua Harvey


The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures evolve? Joshua Harvey details the 500 million year story of the human eye.

Lesson by Joshua Harvey, animation by Artrake Studio.

Richard Dawkins demonstrates the evolution of the eye

Creationists and supporters of Intelligent Design like to point to what they call the "irreducible complexity" of the eye as proof of the existence of a designer/creator. In other words, they like to say that complex components of our physiology like the eye could not have come about through a process of evolution because they are not of any use until everything is in place and working. In this excerpt from his lecture "Growing Up In The Universe: Climbing Mount Improbable", Professor Dawkins demonstrates how something complex like the eye can indeed evolve.

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See all five "Growing Up In The Universe" lectures by Richard Dawkins in their entirety here


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Watch first, comment afterwards ;)

 

[free_thinker]

What is the point in merging them? They are two different topics, having same thumbnail does not mean they are same.

Thanks for adding the DailyMotion (<==funny name ) links though.

 

[free_thinker]

Who is this Faizanmaqsood1010? Seems like he is a smart cookie from Siasat.pk, perhaps Faisal?. He just downloaded the video from youtube and added in to DailyMotion. Did he get the permission from original loaders from youtube to create the copy and distribute it on other websites and perhaps enjoy few $ of ad revenue (He has 5,698 videos - 9,581,860 views). Killing two birds with one stone.

Clever!

 

[moazzamniaz]

۔ لیکن ویکسین والی ویڈیو میں یہ تو بتایا ہی نہیں گیا کہ یہ ویکسینز کس طرح مسلمان لڑکوں کی اولاد پیدا کرنے کی صلاحیت کو ختم کر دیتی ہیں، جیسا کہ طالبان اور دوسرے ملا حضرات دعوی کرتے رہتے ہیں. وہ والی ویڈیو بھی اگر کسی ممبر کو علم ہو تو لگادے، شکریہ

 

[Democrate]

۔ لیکن ویکسین والی ویڈیو میں یہ تو بتایا ہی نہیں گیا کہ یہ ویکسینز کس طرح مسلمان لڑکوں کی اولاد پیدا کرنے کی صلاحیت کو ختم کر دیتی ہیں، جیسا کہ طالبان اور دوسرے ملا حضرات دعوی کرتے رہتے ہیں. وہ والی ویڈیو بھی اگر کسی ممبر کو علم ہو تو لگادے، شکریہ

جناب یہ اسپیشل فارمولا ہے جو صرف طالبان کو پتا ہے ،١٩٩٨ میں لوگ بھوک سے مر رہے تھے افغانستان میں اور طالبان نےفرمایا تھا روزی تو اللّہ دیتا ہے ،ان حرامیوں سے کوئی پوچھے ہاتھ بھی خدا ہی دیتا ہے یا صرف وہ استنجا
اور ستھن اوپر نیچےکرنے کے لئے ہیں