Here's a wonderfully cool chemistry experiment done with liquid nitrogen. It literally explodes! Enjoy!

An experimental animation,that manages to be kind of cool! Each frame is made out of one piece of 4x6 card stock. Pretty impressive, although rather short. Enjoy!

I remember chemistry class as very boring and with all kinds of formulas that made me fall asleep. Well...at the Ontario Science Center, kids can take passion in chemistry by watching a cool show. Here it is on video, one part of that show!

This is water supercooled at -21 degrees Celsius (-6F). As you can see it is still in liquid form. You can check out why on the supercooling wiki page. The amazing thing happens when you pour the water. Really cool! Enjoy!

Here's a video test of what happens when you remove the CPU fan and cooler from different models of CPU's from both AMD and Intel. I actually know a guy who did this "experiment" on an AMD Athlon and ended up in smoke. The test in this video is made while running Quake 3 on CPU's that are in most PCs nowadays! So remember: never ever remove the CPU fan and cooler!

Some clips of Thermite from Brainiac science abuse. Thermite burns at around 4000 °F (2500 °C) and can cut just about anything. Watch it destroy anything in its path! Cool.

Here's a funny video experiment I've found relating to cats and scotch tape. They act very strange when they have it on their body. I don't think they are hurting, it just is an awkward feeling. Can't blame them though Enjoy!

...if you know how to do it right, that is! This can't be said about this teacher right here! Damn!

A crazy and very funny video showing you a very scientific way in determining the height of a building. I don't know what's the deal with the contamination suits, so don't ask Enjoy!

I'm all against animal cruelty and such, but sometimes, these experiments can bring forward something that would benefit millions of people. I think that one such case is this. This monkey has a microchip implanted in its brain, and linked up to a robotic arm. The amazing thing is that the monkey can control the arm like an extension of its body, with incredible precision, and without any visible effort!

Cool experiment using an egg and a candle. The result is that you can see the inside of the egg just like an X-Ray (without the radiation ). Pretty amazing for such a simple experiment! X-Ray An Egg - video powered by Metacafe

An awesome video of a sound resonance experiment. By raising the wavelength of the sound beautiful patterns (and more complex) appear in the powder. Just another demonstration that physics can be beautiful Also check out this Fire Spectroscope Video. It's also awesome.

In two separate experiments, scientists reach some interesting conclusions about our brain's ability to perceive time, and how and when we can modify it. Brilliant!

If you've watched the movie "Super size me" then you know what McDonald's food can do to a human in a month of non-stop eating. Further proof of this is this video, in which the Frech fires don't seem to wanna decompose! It's amazing!

It's an interesting experiment. I'm not completely sure it's not a fake, but it's easy enough to try at home., so you should give it a try, and let me know how it works!

Twenty years after the first partially successful attempt to cold fusion, a new experiment seems to have reopened the hopes of obtaining nuclear reactions at low energy (LENR low-energy nuclear reactions). This was announced by a team of researchers led by Pamela Mosier-Boss of the Space and Naval Warfare Systems Center San Diego (California), with a study presented at the annual meeting of American Chemical Society, the first visible evidence of the production of neutrons, the particles subatomic whose presence demonstrates the atomic reaction occurred. It was 1989 when Martin Fleischmann and Stanley Pons showed that it has obtained experimentally the Cold Fusion, arousing great outcry in the scientific community. Fusion is the reaction that takes place inside of stars, their source of energy, able to reproduce in the laboratory at room temperature this process would be an amazing achievement. Further research then disappointed initial expectations: the rare attempts (for example, those of 2000 and 2002) to reproduce the results of 1989 and have not convinced the path of nuclear reaction at low energy has not proved viable as an alternative to "clean" nuclear fission, which is based on the common operation of nuclear power.

For the first time a gene was identified that allows the repair of damaged nerves in nematodes. The study is from Science Express. A gene that can stimulate the growth of nerve cells was first identified by researchers at the University of Utah (USA), thanks to cutting-edge experimental techniques and a huge genetic screening on a nematode (cylindrical or worm). The neurons, which in the embrio are able to regenerate, in adults have their capacity to "repair" reduced or absent. In other words, damage to the central nervous system (brain or spinal cord) and its consequences - paralysis, loss or reduction of cognitive faculties - are permanent. "In the past molecules have been identified that can inhibit the growth of neurons in different organisms," says the coordinator of research Michael Bastiani, "but their removal in the laboratory had no effect. That is why we went to look for those genes that can stimulate rather than inhibit, the regeneration of nerve. " Taking as a experimental model flat worms (Caenorhabditis elegans), biologists have searched for the genes that trigger the regrowth of motor (neurons that "command" voluntary muscles): in practice, with an experimental technique called RNA interference to "shut down ", one by one, 5000 on 20,000 genes in the DNA of worms (genes similar are also present in humans). The analysis led to the identification of dlk-1, which appears to play a key role in the regeneration of nerve tissue, and three other genes responsible for the formation of axons (parts of the neuron that conduct electrical signal). The researchers found that in nematodes, the gene dlk-1 not only triggers a chain of events known as "Map kinase" behind the growth of neurons, but also that their regeneration can be increased or decreased by stimulating the gene to produce amounts more or less high of the protein dlk-1.

The molecule slows the proliferation of tumor cells while giving the time needed to repair the damage to their DNA. The discovery, made by Italian researchers IEA, is published in Nature. The secret of immortality of cancer stem cells - those that feed it and cause relapses because they're immune to chemotherapy - was unveiled. Their strength is the p21 protein that slows the proliferation, giving them the time needed to repair damage to DNA. In practice, it is as if these cells were able to rejuvenate indefinitely: no age, and thus do not die. By blocking the production of p21, however, you can make them vulnerable and hit the tumor at the root. The research was conducted in the laboratories of the European Institute of Oncology (IFOM-IEO) in collaboration with the universities of Milan and Perugia, and was published this week in Nature. The cells age and die because they accumulate damage and mistakes borne of DNA during cell divisions. To understand why this does not happen in a cancerous stem cell, the researchers observed what happens to a staminale "normal" when you alter one of the genes (oncogenes) that cause cancer (in this case, the acute myeloid leukemia). The study revealed that oncogenes stimulate the activity of another gene, called p21, and thus the production of the corresponding protein, whose effect is to slow the proliferation. In essence, these cells have much more time to repair other damaged DNA, and remain young and active, immune to chemotherapy drugs because they recognize and affect only the cells in rapid proliferation.

A new technique, developed in the laboratories of the Foundation San Raffaele Biomedical Park, facilitates the process of regeneration of muscle tissue. Stem cells, modified at the level of genes, could permit the recovery of tissue degenerated from Duchenne muscular dystrophy (Dmd), even when the disease is in an advanced stage. This is a further step towards developing a therapy, which is being developed for some years by researchers of the Foundation San Raffaele Biomedical Park of Castel Romano, coordinated by Giulio Cossu, University of Milan. The research, published in Nature Medicine, was conducted by Cesare Gargioli and Marcello Coletta, along with Fabrizio de Grandis and Stefano Cannata at the Roman Tor Vergata. From previous studies and experiments on animal models it is known that mesangioblasti, stem cells normally associated with blood vessels, are able to spread easily and merge with and into the muscle tissue regenerating it (cell therapy). In advanced stages, however, this treatment had so far proven ineffective because of difficulties to penetrate between the muscle fibers. The degeneration, in fact, is accompanied by a process of inflammation followed by scarring tissue that impedes the provision of blood (and thus oxygen) to the muscles. Therefore, the muscle fibers are replaced with fatty tissue. To overcome the obstacle, the researchers genetically modified cells derived from the tendons (fibroblasts) so as to make them express the protein metalloproteasi 9 (Mmp9), a molecule that can degrade collagen that accumulates between fibres degeneration.