Search results
Results from the WOW.Com Content Network
Hertz wireless experiments (1887): Heinrich Hertz demonstrates free space electromagnetic waves, predicted by Maxwell's equations, with a simple dipole antenna and spark gap oscillator. Thomson's experiments with cathode rays (1897): J. J. Thomson's cathode ray tube experiments (discovers the electron and its negative charge).
This student is carrying his science project to school. Display projects involve a creative assembly of a display board and construction of a model to show a visual representation of a larger fact. Making a model of the Solar System, a house, or of a simple electric circuit are considered display projects. Display boards are used to enhance the ...
Welcome to WikiProject Biology, a WikiProject for discussing biology-related articles, editing issues, projects, and guidelines.The purpose of this project is to provide common ground for editors working in all biology-related projects, for seeking advice or requesting help from a broader community of biology editors, and for coordinating the categorization of biology articles.
Origin of life.Exactly how, where, and when did life on Earth originate? Which, if any, of the many hypotheses is correct? What were the metabolic pathways used by the earliest life forms?
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Research project and results. Archived from the original on 2011-07-16. "The Bacillus thuringiensis Toxin Specificity Database". Natural Resources Canada. Archived from the original on 2009-02-17. "Bacillus thuringiensis Taxonomy". NIH. "Bacillus thuringiensis] genomes and related information". PATRIC, a Bioinformatics Resource Center. NIAID.
A comparison of RNA (left) with DNA (right), showing the helices and nucleobases each employsThe RNA world is a hypothetical stage in the evolutionary history of life on Earth in which self-replicating RNA molecules proliferated before the evolution of DNA and proteins. [1]
Tissue culture is an important tool for the study of the biology of cells from multicellular organisms. It provides an in vitro model of the tissue in a well defined environment which can be easily manipulated and analysed. In animal tissue culture, cells may be grown as two-dimensional monolayers (conventional culture) or within fibrous ...