64
POPS25 signs you've grown up! 90% of the time you spend in front of a computer is for real work. You go to the drug store for ibuprofen and antacid, not condoms and pregnancy tests...interesting!
52
POPSThe Mathematical Lives of Plants The seeds of a sunflower, the spines of a cactus, and the bracts of a pine cone all grow in whirling spiral patterns. Remarkable for their complexity and beauty, they also show consistent mathematical patterns that scientists have been striving to understand. ... Scientists have puzzled over this pattern of plant growth for hundreds of years. Why would plants prefer the golden angle to any other? And how can plants possibly "know" anything about Fibonacci numbers? For the first time, scientists have found convincing biochemical mechanisms responsible for the interlocking spiral growth patterns seen in many plants. (The Romanesco broccoli plant is a striking example.) The video of the experiment with magnetized liquid iron droplets demonstrates how the geometry of such growth could occur in nature.
45
POPSMajor biological discovery…inside the Chernobyl reactor "That is to say, the melanin molecule gets struck by a gamma ray and its chemistry is altered. This is an amazing discovery, no one had even suspected that something like this was possible. Aside from its novelty value, this discovery leads to some interesting speculation and potential research. Humans have melanin molecules in their skin cells, does this mean that humans are getting some of their energy from radiation? This also implies there could be organisms living in space where ionizing radiation is plentiful."
34
POPSSun + Water = Fuel Michael Grätzel, however, may have a clever way to turn Nocera's discovery to practical use. A professor of chemistry and chemical engineering at the École Polytechnique Fédérale in Lausanne, Switzerland, he was one of the first people Nocera told about his new catalyst. "He was so excited," Grätzel says. "He took me to a restaurant and bought a tremendously expensive bottle of wine." In 1991, Grätzel invented a promising new type of solar cell. It uses a dye containing ruthenium, which acts much like the chlorophyll in a plant, absorbing light and releasing electrons. In Grätzel's solar cell, however, the electrons don't set off a water-splitting reaction. Instead, they're collected by a film of titanium dioxide and directed through an external circuit, generating electricity. Grätzel now thinks that he can integrate his solar cell and Nocera's catalyst into a single device that captures the energy from sunlight and uses it to split water.
31
POPSOur Rights Taken Away By Corporations
"He went on to specify how this could happen: direct seed movement by birds, by wind, especially on the prairies, by floods, and through cross-pollination by bees). It doesn’t actually matter how the genetically modified organisms get into an organic farmer’s field or into the fields of a conventional farmer like myself: once there, those seeds and plants become Monsanto’s property.” It was a very startling decision. The judge also ruled that we were not allowed to use our seeds or plants again and that all the seeds and plants that we had developed over 50 years became the property of Monsanto. The judge also ruled that all the profit from my 1998 canola crop was payable to Monsanto. The judge further ruled that even from the land that had no contamination, all profit would be payable to Monsanto because there was a probability that our seed contained some of Monsanto’s GMOs. The really worrying thing is how we can lose our rights and freedoms. The contract from Monsanto, take
30
POPSThe Aral Sea - A Tear Drop on Mother Earth "The Aral Sea is not an isolated case almost all the lakes in the world are under threat of faulty development agenda of the short sighted governments and in various stages of degradation. If the Aral Sea model opens anybody’s eye it would be of immense good for the generations to come."
30
POPSSolving the Mystery of the Vanishing Bees This is a fascinating story. It is not the life of bees which is fascinating, but the vast complexity and interconectedness of life it exposes. From humans to beehives to plants to microbes, fungi, viruses, genes, metagenomics and what not. All are partaking in one orchestrated intelligent whole. This is a must read
29
POPSchildren lost the right to roam in 4 generations The article reflects our changing habits and our relationship with our environment. I agree completely about the necessity of outdoors, nature, plants, our good ol' earth. Ever been fishing? To a quiet golf course? A hike? How does it rejuvenate you? I am working on making my backyard a kind of restful, naturalist place for me to go and be refreshed.
27
POPSSex is the ultimate absurdity Isn't it ironic that we all suffer today the consequences of how single celled organisms that lived a billion years ago choose to procreate? :-)
27
POPSMan Made Life Whoa. The implications from this will be enormous. If this project succeeds expect a concerted campaign of denial and attack from the religious conservatives.
26
POPS'Major discovery' from MIT primed to unleash solar revolution Sunlight has the greatest potential of any power source to solve the world's energy problems, said Nocera. In one hour, enough sunlight strikes the Earth to provide the entire planet's energy needs for one year. "This is a major discovery with enormous implications for the future prosperity of humankind,"
26
POPSNew clues on "The Great Dying" The lessons of the Permian-Triassic massacre are "directly applicable to the present," said John Isbell, a geoscientist at the University of Wisconsin in Milwaukee. He said the world today is in danger of exceeding a CO2 "threshold" that could set off an environmental upheaval as great as the one 251 million years ago.
25
POPSBio-Earth: Are Planets Living Super-Organisms? He believes that expanding the study of life sciences to the core of our world and the depths of outer space will help us find distant relatives of our own Earth -- planets that could also sustain life. To explain why contintental plates drift on the surface of the Earth's molten mantle, Maruyama argues that continents actually have life cycles. Old, cold plates on continental fringes sink to “plate graveyards” deep in the Earth’s mantle, and then rise again, creating volcanoes fueled by three-dimensional convection movements deep below the surface.
24
POPSBizarre Aquatic Creatures Are Secretly "Lesbian Necrophiliacs"
Upon patching up their own DNA, the bdelloids simultaneously incorporate random scraps of DNA from other organisms. This so-called horizontal gene transfer is extremely rare among animals, and in the bdelloids’ case can include DNA from almost anything that was in their soupy habitat at the time things dried up, including whatever they just ate. In only 1 percent of the bdelloid genome, Meselson found dozens of foreign genes from bacteria, plants, and fungi inserted among the native nucleotides. It’s likely, he says, that during recovery from dessication, bdelloids pick up genes from members of their own species, too—dead members, that is, whose genes spill out of ruptured cell membranes. That process would provide the kind of genetic reshuffling that other animals achieve through sexual reproduction. “It may be their form of sex,” Meselson says. “But their partner is essentially dead. So you’d have to call it necrophilia. Actually, since they’re all females, lesbian necrophilia.”
24
POPS14,000 year-old tool kit of an ancient man He did not have screwdrivers, knives, pinchers or drills in his bag of course but the contents of the bag shows he was well equipped for many things in prehistoric life. Interesting discovery.
23
POPSThreat To Medicines From Plant Extinctions The world's most widely-used cancer drug, is Paclitaxel, which is derived from the bark of several species of yew tree. Its complex chemical structure and biological function has so far made it impossible to produce artificially. ----- 80 per cent of the global population - rely on traditional plant-based medicine as their primary form of healthcare. -----
23
POPSDo Plants Have Feelings? If plants do have some sort of "feelings", what are all the vegans and vegetarians going to do? After all, you can't live on love alone... ;)
9
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update