October 2016 Science Newsletter

fallNow that school is in full swing we wanted to make sure that you had all the necessary supplies to teach science. Capital Microscope is a full service company supplying not only your microscope needs but materials for all your science courses.

We invite you to explore our website at MicroscopesandMore. The completely redesigned site is easy to use with many new features to aid you in finding the very best in science equipment. Give it a test run and we know you will agree.

You have now had a chance to use your microscopes and may have found that they need attention. We can come to your school and get your scopes in top shape for your students to enjoy using them for expanding their view of the world around them. Click here to find out how to schedule a time for me to service your microscopes.

Featured Products

National BTW1-213-RLED

DCS213Introducing National Optical & Scientific Instruments’ new line of digital compound microscopes with detachable 8″ LCD tablet! The BTW1-213-RLED features high speed, full-resolution imaging technology built into some of our most popular microscopes. This WiFi digital tablet transmits live images to iOS or Android devices. Use it as a conventional microscope or share live images with colleagues using WiFi tablets, wireless laptops, and HD-ready LCD monitors/projectors through HDMI. Tablet includes preloaded Motic apps. More Info.

Swift SM102-C

sm101-cIn this fast- paced changing classroom environment, we understand you need more than products you need solid STEM solutions! Designed to build your STEM classroom! Bring the macro world to another level with your students. Ideal for high school, advanced studies and applied sciences. Introducing a new look to the Swift Stereo Line! The SM102-C features fixed magnifications of 20X and 40X. The SM102-C includes energy-efficient variable LED illumination with 5 light setting combinations, “one-touch” spring loaded stage clips and right eyepiece diopter focusing adjustment. Ideal for high school classrooms and up. This new series of stereo microscopes is designed to fit your budget, too! More Info.

Laser Optical Demonstrator

P20003_largeThis optical geometric apparatus offers a compact, convenient and comprehensive set up with a metal dish template that has 360º rotation. 13 optical components are included such as a rectangular prism, a trapezoid prism, a right angle prism, a semicircular lens, a convex lens and a concave lens. Students can also examine light ray paths in liquids with a rectangular acrylic cell and two mirrors with combined concave and convex planes. A periscope model, a Galilean telescope model, a Kepler telescope model and an optical fiber unit are included. Includes instruction manual and two AAA batteries. More Info.

Science History

General Science History

In 1884, Greenwich was adopted as the universal meridian. At the behest of the U.S. President, 41 delegates from 25 nations met in Washington, DC, for the International Meridian Conference. At the Conference several important principles were established: a single world meridian passing through the principal Transit Instrument at the Observatory at Greenwich; that all longitude would be calculated both east and west from this meridian up to 180°; a universal day; and studies of the decimal system to the division of time and space. Resolution 2, fixing the Meridian at Greenwich was passed 22-1 (San Domingo voted against, France & Brazil abstained). Greenwich lies on the River Thames, a few miles from central London.

Biology

In 1997, American biology professor Stanley B. Prusiner won the Nobel Prize for medicine for discovering “prions,” described as “an entirely new genre of disease-causing agents.” The name means “proteinaceous infectious particle.” Prions cause brain diseases such as BSE (Bovine Spongiform Encephalopathy or “mad cow disease”); the human variant Creutzfeldt-Jakob disease; kuru among some peoples in New Guinea; and scrapie in sheep and goats. Prions are too small to be seen with normal microscopy. They are self-replicating, but contain no nucleic acid. Prions are highly resistant to destruction or denaturation by common chemical and physical agents such as disinfectants, formalin, heat, UV or ionizing radiation. Inceration of infected tissues requires a temperature never below 900ºF for four hours.

Chemistry

In 1971, the mole – the amount of substance (matter)-was adopted as a chemical measurement added to the six base quantities of the SI (International System of scientific units). The decision was made by the Conférence Général des Poids et Mesures (CGPM), the principal executive organization under the Treaty of the Meter (which dates back to the Metric Convention on 20 May 1875). IUPAC’s participation was led by M.L. McGlashan. The mole is the amount of substance of a system which contains as many elementary entities as there are carbon atoms in 0.012 kg of carbon 12. The elementary entities must be specified, such as atoms, molecules, ions, electrons, other particles, or specified groups of such particles. The agreed symbol for the unit is mol, and the symbol for amount of substance is n.

Physics

In 1931, the first U.S.short-exposure infrared photograph taken of a large group of people in apparently total darkness was taken in Rochester, NY at the Eastman Kodak Research Laboratories. They were in a room that was flooded with invisible infrared light (waves 700 to 900 nanometers long, beyond the red end of the visible spectrum). A group of 50 people visiting the laboratory was photographed on a new photographic emulsion sensitive to infrared. Since then, scientists have made use of infrared photography in medical applications and aerial photography. Since plant chlorophyll reflects infrared rays more intensely than other green materials, infrared photos yield a precise indication of where vegetation is present on the ground.

Earth Science

In 1847, Maria Mitchell, the first woman astronomer in the United States, discovered a comet. One night in the Autumn of 1847, Maria looked at the sky through the telescope in her homemade observatory at Nantucket, Mass. and saw a star five degrees above the North Star where there had been no star before. She had memorized the sky and was sure of her observation. It occurred to her that this might be a comet. Maria recorded the presumed comet’s coordinates. The next night the star moved again. This time she was sure it was a comet. For this discovery, she was awarded a gold medal by the king of Denmark. She became the first woman elected to the American Academy of Arts and Sciences.

October Quote

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality. – Albert Einstein

We know that you are in the middle of all the fall activities that take up so much of your time. Please feel free to contact us directly when we can be of assistance in any area of science education. We are committed to providing personal service.