แสดงบทความที่มีป้ายกำกับ Science แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ Science แสดงบทความทั้งหมด

วันเสาร์ที่ 10 มีนาคม พ.ศ. 2555

soft tissue in dino fossils-nothing in science can acquiesce this to be millions of years old

Dr. Mary Schweitzer and her research assistants were working on a T-rex dinosaur fossil and saw medullary tissue (showing that the T-rex had been pregnant). Because no one had ever found this tissue in a dinosaur fossil before, she told her assistant to soak it in acid to be able to study the structures better. When they tried this new approach, they were stunned to find blood vessels, bone matrix and elastic tissues in the fossil, all soft tissues found somewhere they shouldn't be according to evolution. Schweitzer et al. also found evidence of degraded hemoglobin fragments and structures that might represent altered blood remnants. She eventually published a number of papers (references and links below) which right from the first challenged the basic principles of fossilization by stating, "Soft tissues and cell-like microstructures derived from skeletal elements of a well-preserved Tyrannosaurus rex (MOR 1125) were represented by four components in fragments of demineralized cortical and/or medullary bone: flexible and fibrous bone matrix; transparent, hollow and pliable blood vessels; intravascular material, including in some cases, structures morphologically reminiscent of vertebrate red blood cells; and osteocytes with intracellular contents and flexible filipodia." Dr. Mary Schweitzer, states, "When you think about it, the laws of chemistry, biology and and everything else we know, say it should be gone, it should be degraded completely." www.youtube.com (~6:30 ...



http://www.youtube.com/watch?v=ynXwAo9V_pY&hl=en

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วันอาทิตย์ที่ 13 พฤศจิกายน พ.ศ. 2554

6.29.10 California Tribes Protest MLPA Science Meeting

California Ocean Protection Process Scapegoats Native Cultures Marine Life Protected Areas Would Allow for Deep Water Drilling yet would Ban Tribal Gathering Eureka, CA - Members of local American Indian Tribes interrupted the Marine Life Protection Act Initiative's Science Advisory Team meeting today demanding that they not be blamed for the decline in ocean fisheries. "We gathered and harvested the ocean's bounty for thousand of years in a sustainable manner. For California to blame Tribes for it's reckless mis-management of our fisheries for the last century is simply appalling," said Frankie Joe Myers, a Yurok ceremonial leader and member of the Coastal Justice Coalition. The Marine Life Protection Act Initiative (MLPAI) is a public and privately funded partnership between the State of California and a hand-full of big money, private foundations, primarily the Resources Legacy Fund, to implement the Marine Life Protection Act (MLPA), which was signed into law in 1999. The MLPA is designed to protect ocean resources, but Tribal spokesmen say that it's an attempt by the Schwarzenegger Administration to greenwash his legacy. Amid chants of "keep your laws off my culture" and "MLPA taking Tribal rights away" the MLPA Science Advisory Team attempted to meet Tuesday, but Tribal activists essentially took over the meeting and demanded an opportunity to speak on the record. For about an hour Native Americans as well as non-native supporters criticized the process and demanded ...



http://www.youtube.com/watch?v=Qcox-tHsJNw&hl=en

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วันศุกร์ที่ 26 กุมภาพันธ์ พ.ศ. 2553

Science Experiment Ideas Made Fun and Easy

Science experiment ideas all depend upon the individual student's interests. For instance, if you are interested in animals you may be more interested in doing a project on Zoology, which is the study of animals, or Biology which is the study of all living things and the relationships between plants and animals. However, if you are interested in plants you might choose to do a project on Biology, which again is the study of all living things, including plants and animals. You will find out what makes plants grow, their contribution to our environment and their cell structure. If it's the stars, planets, the universe and the solar system that you find intriguing, you may want to pick a topic on Astrology.

If you like working with substances and seeing how they react to one another, you should choose a topic about Chemistry. Maybe earthquakes, tornadoes, fossils, minerals, rocks, the weather, oceans, marine life or prehistoric creatures are what interest you, in which case you should choose Earth Science experiments ideas to focus on. If machinery and how it works is what you find fascinating then you should study engineering.

Environmental science experiments might be your thing if you're concerned with the earth, recycling, composting, ecology, acid rains and the effects of pollutants. If you're interested in bacteria, yeast and microorganisms, then Microbiology is your thing. If you like to learn about electricity, energy, gravity, machines, magnets and how materials change and combine, then you should choose a Physical science project. However, if it's numbers and symbols that peak your interest, you should choose a topic about Mathematics.

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