tag:blogger.com,1999:blog-6923194955140524972024-02-18T19:24:25.048-08:00sciencebuddy.comOnline Science Magazinescience buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-692319495514052497.post-86355158941361370022007-10-28T07:30:00.000-07:002007-10-28T07:40:52.646-07:00DISCOVERY OF THE DAY<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiogr7cx-OtgqbUzddDIV089job4Tc5tplKTfFUEcwWrAb6wT5evIMfd4BBOd2wvc3kp2YHhbq1D1TTy4hldR-jddtFye-BT9XgYCX_NIAYXaU1N5Mn-NqkQpL_CeI8pLQ5JL6bUJdBnHo/s1600-h/discoveryofday1.jpg"><img id="BLOGGER_PHOTO_ID_5126397528733589986" style="FLOAT: left; MARGIN: 0px 10px 10px 0px; CURSOR: hand" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiogr7cx-OtgqbUzddDIV089job4Tc5tplKTfFUEcwWrAb6wT5evIMfd4BBOd2wvc3kp2YHhbq1D1TTy4hldR-jddtFye-BT9XgYCX_NIAYXaU1N5Mn-NqkQpL_CeI8pLQ5JL6bUJdBnHo/s200/discoveryofday1.jpg" border="0" /></a><br /><div align="justify"><span style="font-family:arial;font-size:85%;color:#ffff33;">I Love the Smell of DDT in the Morning </span><a href="http://blogs.discovery.com/discovery_of_the_day/" target="_blank"><span style="font-family:arial;font-size:85%;color:#ffff33;">Oct. 28, 1948: </span></a><span style="font-family:arial;font-size:85%;color:#ffff33;">Swiss chemist Paul Muller becomes the first non-physician to win the Nobel Prize for Medicine. Nine years earlier he had discovered that the chemical DDT was deadly to disease-carrying insects. In fact, DDT was so effective that during World War II American and British soldiers had their clothes dusted with it. </span></div>science buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.com11tag:blogger.com,1999:blog-692319495514052497.post-30012791055361204162007-04-05T03:50:00.000-07:002007-04-05T04:05:22.581-07:00Albert Eienstine - The Great<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjnuzifPHpnmW-t78zcW1b0Up18cipiTsQG6o8qUoxpZEu2Ggd10woMi9lucmzWBCF6iBuS_AE5r_eOkslcbl-polqQDClTW9uHv60l4mY06zl8LaYnlbdIZQcNf8y0e8F9v8zQxemWUg/s1600-h/einsteinwiki.jpg"><img id="BLOGGER_PHOTO_ID_5049898133523722210" style="DISPLAY: block; MARGIN: 0px auto 10px; CURSOR: hand; TEXT-ALIGN: center" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjnuzifPHpnmW-t78zcW1b0Up18cipiTsQG6o8qUoxpZEu2Ggd10woMi9lucmzWBCF6iBuS_AE5r_eOkslcbl-polqQDClTW9uHv60l4mY06zl8LaYnlbdIZQcNf8y0e8F9v8zQxemWUg/s200/einsteinwiki.jpg" border="0" /></a><br /><div><span style="color:#ff6666;"></span><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2VbSIpDl2x2uxfTboVsK1b_sB_tl3eL0I04QOl45fBad6S6vfYP0ntgUXEjJU38oyzIAvENrRZwrcrfYkUOkbgdg0zdUau0cgRY5GUPLuwL50xUP0N8xa0brlNvs6Mhfinqo4hHCEnRs/s1600-h/einsteinwiki.jpg"></a><span style="font-family:trebuchet ms;color:#ff0000;"><strong>Special relativity<br /></strong></span><br /><span style="color:#ffffff;">Special relativity is a theory of the structure of </span><a title="Spacetime" href="http://en.wikipedia.org/wiki/Spacetime"><span style="color:#ffffff;">spacetime</span></a><span style="color:#ffffff;">. It was introduced in </span><a title="Albert Einstein" href="http://en.wikipedia.org/wiki/Albert_Einstein"><span style="color:#ffffff;">Albert Einstein</span></a><span style="color:#ffffff;">'s </span><a title="1905" href="http://en.wikipedia.org/wiki/1905"><span style="color:#ffffff;">1905</span></a><span style="color:#ffffff;"> paper "</span><a title="Annus Mirabilis Papers" href="http://en.wikipedia.org/wiki/Annus_Mirabilis_Papers#Papers"><span style="color:#ffffff;">On the Electrodynamics of Moving Bodies</span></a><span style="color:#ffffff;">". Special relativity is based on two postulates which are contradictory in </span><a title="Classical mechanics" href="http://en.wikipedia.org/wiki/Classical_mechanics"><span style="color:#ffffff;">classical mechanics</span></a><span style="color:#ffffff;">:<br />The laws of physics are the same for all observers in </span><a title="Inertial reference frame" href="http://en.wikipedia.org/wiki/Inertial_reference_frame"><span style="color:#ffffff;">uniform motion</span></a><span style="color:#ffffff;"> relative to one another (</span><a title="Galileo Galilei" href="http://en.wikipedia.org/wiki/Galileo_Galilei"><span style="color:#ffffff;">Galileo</span></a><span style="color:#ffffff;">'s </span><a title="Principle of relativity" href="http://en.wikipedia.org/wiki/Principle_of_relativity"><span style="color:#ffffff;">principle of relativity</span></a><span style="color:#330033;"><span style="color:#ffffff;">),<br /></span></span><span style="color:#ffffff;">The </span><a title="Speed of light" href="http://en.wikipedia.org/wiki/Speed_of_light"><span style="color:#ff0000;">speed of light</span></a><span style="color:#330033;"> <span style="color:#ffffff;">in a</span> </span><a title="Vacuum" href="http://en.wikipedia.org/wiki/Vacuum"><span style="color:#ff6666;">vacuum</span></a><span style="color:#330033;"> <span style="color:#ffffff;">is the same for all observers, regardless of their relative motion or of the motion of the source of the</span> </span><a title="Light" href="http://en.wikipedia.org/wiki/Light"><span style="color:#ff6666;">light</span></a><span style="color:#330033;"><span style="color:#ff6666;">.<br /></span><br /><span style="color:#ff9966;">The resultant theory has many surprising consequences. Some of these are</span>:<br /><br /></span><a title="Time dilation" href="http://en.wikipedia.org/wiki/Time_dilation"><span style="color:#ff6666;">Time dilation</span></a><span style="color:#330033;">: </span><span style="color:#ffffff;">Moving </span><a title="Clock" href="http://en.wikipedia.org/wiki/Clock"><span style="color:#ffffff;">clocks</span></a><span style="color:#ffffff;"> tick slower than an observer's "stationary" clock.<br /></span><a title="Length contraction" href="http://en.wikipedia.org/wiki/Length_contraction"><span style="color:#ff6666;">Length contraction</span></a><span style="color:#330033;"><span style="color:#ff6666;">:</span> </span><span style="color:#ffffff;">Objects are shorter along the direction in which they are moving.<br /></span><a title="Relativity of simultaneity" href="http://en.wikipedia.org/wiki/Relativity_of_simultaneity"><span style="color:#ff6666;">Relativity of simultaneity</span></a><span style="color:#330033;"><span style="color:#ff6666;">:</span> </span><span style="color:#ffffff;">two events that appear simultaneous to an observer A will not be simultaneous to an observer B if B is moving with respect to A.<br /></span><a title="E=" href="http://en.wikipedia.org/wiki/E=mc²"><span style="color:#ff6666;">E=mc²</span></a><span style="color:#330033;"><span style="color:#ff6666;">:</span> </span><span style="color:#ffffff;">energy and mass are equivalent and interchangeable.<br />The defining feature of special relativity is the replacement of the </span><a title="Galilean transformation" href="http://en.wikipedia.org/wiki/Galilean_transformation"><span style="color:#ffffff;">Galilean transformations</span></a><span style="color:#ffffff;"> of classical mechanics by the </span><a title="Lorentz transformation" href="http://en.wikipedia.org/wiki/Lorentz_transformation"><span style="color:#ffffff;">Lorentz transformations</span></a><span style="color:#ffffff;">. (See </span><a title="Maxwell's equations" href="http://en.wikipedia.org/wiki/Maxwell"><span style="color:#ffffff;">Maxwell's equations</span></a><span style="color:#ffffff;"> of </span><a title="Electromagnetism" href="http://en.wikipedia.org/wiki/Electromagnetism"><span style="color:#ffffff;">electromagnetism</span></a><span style="color:#ffffff;"> and </span><a title="Introduction to special relativity" href="http://en.wikipedia.org/wiki/Introduction_to_special_relativity"><span style="color:#ffffff;">introduction to special relativity</span></a><span style="color:#ffffff;">).<br /></span></div>science buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.com2tag:blogger.com,1999:blog-692319495514052497.post-29894502976315128782007-04-04T06:30:00.000-07:002007-04-04T08:49:48.304-07:00The ever growing science family<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjht5QMcm1wyorOHc6dNrqxce9rf5W8aGsc-RAZ3o0oeE7qIxhsre3WIkCNoKqS1o4lEOC-HZgFNJplM9R8l2D57P9GkawnxER3B4t35vbzyXShQFFJIdyhkYUX9n_yWFAHHvp8olJkTRk/s1600-h/SurfScienceStudents.jpg"><img id="BLOGGER_PHOTO_ID_5049565127529394098" style="FLOAT: left; MARGIN: 0px 10px 10px 0px; CURSOR: hand" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjht5QMcm1wyorOHc6dNrqxce9rf5W8aGsc-RAZ3o0oeE7qIxhsre3WIkCNoKqS1o4lEOC-HZgFNJplM9R8l2D57P9GkawnxER3B4t35vbzyXShQFFJIdyhkYUX9n_yWFAHHvp8olJkTRk/s320/SurfScienceStudents.jpg" border="0" /></a>science buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.com1tag:blogger.com,1999:blog-692319495514052497.post-13741892004973884212007-04-04T05:05:00.000-07:002007-04-05T04:44:50.209-07:00Got any Topic Problem "Main Hoon Naa" at 9833120935<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9iXbKN1VPcBCRfkD_ZW7nU8AZMsKTMo7LAJvsKncy4o-CG0zHBdL7oWF4S9AMZoSkvDIcP0gd10ALmdqJ_ujwoZWY8pPazp1Bt6sOiNf1dRzyQU4JxXJ6xR9coc4YdTjeRVjKVHuP3ZU/s1600-h/sms-handydisplay_366.jpg"><img id="BLOGGER_PHOTO_ID_5049906019083677682" style="DISPLAY: block; MARGIN: 0px auto 10px; CURSOR: hand; TEXT-ALIGN: center" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9iXbKN1VPcBCRfkD_ZW7nU8AZMsKTMo7LAJvsKncy4o-CG0zHBdL7oWF4S9AMZoSkvDIcP0gd10ALmdqJ_ujwoZWY8pPazp1Bt6sOiNf1dRzyQU4JxXJ6xR9coc4YdTjeRVjKVHuP3ZU/s200/sms-handydisplay_366.jpg" border="0" /></a> <span style="color:#ffffff;">Welcome to the</span> <span style="font-family:arial;color:#ff0000;">Science buddy helpline</span>- <span style="color:#ffffff;">for student who need help, want to give help, or want to help us all by asking intriguing questions and starting great discussions. We can help with all areas of Math and Science. SMS your question or post in comments section here and someone will respond! A subject expert or your any science friends from sciencebuddy club</span>.<br /><div></div>science buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.com3tag:blogger.com,1999:blog-692319495514052497.post-82817213036640048032007-04-04T04:50:00.000-07:002007-04-04T05:02:31.138-07:00science buddy club<span style="font-family:lucida grande;color:#ff6600;">hi, if you are a science student u can join this SCIENCE BUDDY CLUB - "a friend in need is a friend in deed". Through this club you can share your study problems or subject problems with your other science friends of your city, country or world.</span>science buddyhttp://www.blogger.com/profile/03814770116517712983noreply@blogger.com4