Amazing see through frog

Hi,

This frog is see through.
Amazing. No need to dissect to look at the intestines, blood vessels, the reproductive organs, the lungs, the heart etc. To see the frog at its original size, click on the link below.

http://ngm.nationalgeographic.com/wallpaper/img/2008/04/apr08-02-1280.jpg

Selamat Hari Raya Puasa to all Muslim friends

Cheers

10 ways to rescue the climate, according to science fiction

Hi,

Check out this link:

10 ways to rescue the climate, according to science fiction.

1: Pump the atmosphere full of nanomachines to get "smart weather."
2: A ring of ice.
3: Use special bacteria.
4: Build a giant sunshade around the Earth.
5: Take Earth further away from the sun.
6: Hack The Human Genome
7: Restart the Gulf Stream
8: Shut down all our technology
9: Open a big hole.
10: Kill the aliens who are causing the problem in the first place.

Scientists have written books on this topic and many of them have been made into movies which are very engaging and entertaining. Some are far-fetched but look plausible, maybe sometime in the future...

Cheers

Urine formation by the nephrons in the kidney

Hi,

This is a short but crisp video on how urine is formed from the blood at the millions of tiny nephrons found in the kidneys. The involvement of the glomerulus, proximal and distal tubules, the loop of Henle and processes such as ultra-filtration and active transport are explained.





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DNA and protein synthesis animations

Hi,

This post is on animations of how ribosomes are sites where amino acids are assembled to produce protein molecules in cells.The structure of DNA and the nitrogenous base pairs are also mentioned.


How the DNA works can be seen by clicking on this link:
http://www.youtube.com/watch?v=BmDG_fKUTR8



DNA to protein, how the DNA is transcribed to form the mRNA and used to make protein molecules in the cytoplasm. The site of production being the ribosomes.




This simple yet clear video explains transcription, formation of mRNA, nuclear membrane pores, ribosomes the molecular factory, translation, tRNA and protein assembly. the long chain of amino acids or protein being folded to form the 3D structure before it is ready for its use in the body.




Cheers

Hormones

Hi,

Some really cool videos for your viewing pleasure. Learn where hormones are produced, how they travel to the target organs and how they help to co-ordinate processes in our bodies.

The endocrine glands (places which secrete hormones) have a rich supply of blood capillaries in them to carry the chemical messengers(hormones)to all parts of the body where the blood stream flows. the target cells have complementary receptor on their surface membranes. these receptors will bind with the hormones and produces the specific response. After the hormones have done their functions will be destroyed in the liver.












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Deforestation-the tragic aftermath

Hi,


Listen to these songs and watch the videos on the impact of man on the environment. Big animals like the Sumatran tiger of which only about 10 are left in the wild will not take long to go extinct. Small animals like frogs and fresh water organisms, and plants big and small are all in danger when their habitats disappear.

These haunting images of the near extinct magnificent fauna and flora are seldom in the radar of our everyday experiences but they are all treasures which we must be taught to treasure and preserve for our future generations. They are not only beautiful, but their demise will decrease the biodiversity of organisms on the planet. They are important in economic crop plant and animal breeding and as sources of new pharmaceutical products.














For more songs on the environment, click on the link below to listen to Peter Garrett of Midnight Oil.

http://asal-sakti.blogspot.com/search/label/Peter%20Garrett



Cheers

Pollination and sexual reproduction in plants

Hi,

Pollination involves flowers and pollen grains. The agents of pollination could be insects such as bees, ants, bats and other animals that visit flowers to get their food- pollen grains and nectar.

After the pollen grain is successfully transferred from the anther to the stigma, fertilisation process will kick in. This process is different from that in animals as the pollen grain germinates and grows a pollen tube will allows the male gamete to travel through the tube to the ovule.

Flowers go to great lengths to avoid self-fertilisation and prefer cross-fertilisation. It is fascination to see this processes employed in the different species of flowering plants.


Watch these two videos to clarify these concepts.










Cheers