Posts tagged science
Anton Darhuber, Benjamin Fischer and Sandra Troian
Microfluidic Research and Engineering Laboratory, Department of Chemical Engineering
Science: Fertilization, SEM
Coloured scanning electron micrograph (SEM) of a sperm (blue) attempting to penetrate a human egg (orange). The sperm has a rounded head and a long tail with which it swims. Women usually release one egg (ovum) per month, whereas men release millions of sperm in each ejaculation. Only one of these sperm can penetrate the egg’s thick outer layer (zona pellucida) and fertilise it. Fertilisation occurs when the sperm’s genetic material (deoxyribonucleic acid, DNA) fuses with the egg’s DNA. When this occurs the egg forms a barrier to other sperm. Magnification: x700
I also really liked this one!
Science Art: Colorful Cell Division
Source: artologica
“Bumblebee” gecko discovered in Papua New Guinea
A new species of gecko with black and gold bands like a bumblebee and slender toes termed a “striking surprise” has been discovered deep in the tropical forests of Papua New Guinea, the U.S. Geological survey said
Solar prominence
The prominence (top right), is a dense cloud of plasma, or ionised gas, erupting from the chromosphere (orange) - from the sun’s surface. Prominences are typically at temperatures of 60,000 Kelvin, much cooler than the several million Kelvin of the surrounding corona (red).
Lung Cancer Cell Division
Coloured scanning electron micrograph (SEM) of a lung cancer cell during cell division (cytokinesis). The two daughter cells remain temporarily joined by a cytoplasmic bridge (centre). Cancer cells divide rapidly in a chaotic, uncontrolled manner. They may clump to form tumours, which invade and destroy surrounding tissues.
Scientists counting emperor penguins from space have found twice as many of the birds in Antarctica as expected
Evolution of Eating Habits
Omnivores eat both meat and vegetarian. Apparently, omnivore animals like apes, foxes, bears and more came from ancestors that primarily ate plants, or animals, but not both. The Red fox, foe example, feeds on a wide range of foods, from rodents and birds to insects, eggs and fruit, and in urban areas they often scavenge from dustbins. According to the new study, its feeding habits have changes over time
Source: Science Daily
Virus-Cell Interaction
Joerg Schroeer
Department of Molecular Biology, PrincetonHuman cytomegalovirus infected human endothelial cells. Multicolor Immunofluorescence (IF). Blue: DAPI = cellular DNA. Green = GFP (green fluorescence protein). Red + Magenta = two different viral proteins. Captured with a Zeiss LSM510 laser scanning confocal microscope.See here for more photos from Princeton University’s 2005 Art of Science Competition.
Source: stressface
Medical photography: Blood clot
Source: thecoloradopursuit
Explanation for the dropping populations of bees?
Scientists have discovered ways in which even low doses of widely used pesticides can harm bumblebees and honeybees, interfering with their homing abilities and making them lose their way.
Source: Reuters
Top 10 Reasons for Taking Chemistry
View of the Stars from space station orbiting earth - by NASA astronaut Don Pettit.
Water purifying tea bags that cost half a cent and 6 other amazing inventions made possible by nanotechnology
Source: Life Scoop, mylifescoop.com
Nanotechology has evolved by leaps and bounds over the past few years, and we’ve seen scores of big developments made possible by designs smaller than the eye can see. To get you up to speed on the latest and greatest in nano-scale…
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