Friday, January 18, 2013

January Science Newsletter

Happy New Year! 
 
All of us here at Capital Microscope hope the new semester has started strong for you.


Now is a good time to explore our expanded product line which includes everything from microscopes, digital cameras, glassware, lab tools, and lab equipment. Contact us to help you find the right products for you laboratory experiments.


And don't forget to schedule a time for us to come service and clean your microscope.


Visit our website at Capital Microscope to find all your laboratory needs. Or email me directly to let me assist you in finding the best items at the best price.


We are proud to be your science equipment source. Contact us when we can assist you in making science exciting and meaningful for your students.
Featured Products

Electrophoresis Classroom Kit 
The new horizontal electrophoresis apparatus by Walter Products was designed with safety and convenience in mind.
The injection-molded  UV transparent chamber is made from thick acrylic, making it durable and leak-proof while the lid fits securely in place and can easily be removed.  All of Walter's electrophoresis units feature adjustable leveling feet, recessed electrical wires, and a safety stop that prevents the gel from running when the cover is not securely fitted.  Each casting tray with embossed gel ruler has rubber end caps and multiple slots for easy and versatile comb placement.
Our Price: $349
List Price: $454



Swift SM102 Stereo Microscope
The New SM102 Series has all these Standard  features. Locked-on eyepieces and one touch stage clips assure that the parts remain on the scope Slip-clutch system protects against over-focusing Unique" C-wrench gives user sole control over focus tension Built-in Handle to encourage proper handling Cord-hanger allows for safe and hassle- free cord storage. Reversible black& white and frosted stage plates are included. Interlocked eyepiece tubes with diopter for increased focus acuity.  Side Magnification Changer  Eyeshields can be used on eyepieces to reduce ambient light.  Swift Optical Limited Lifetime Warranty covers defective parts and workmanship for the life of the instrument. Five Light setting combinations are energy-efficient LEDs which provide bright, white light, with virtually no heat.
Our Price: $327.25
List Price: $385.00

January Science History Tidbits

General Science History
In 1957, the Wham-O Company developed the first frisbee; a representative of the company got the idea for the product when he saw some truck drivers from the Frisbee Pie Co. of Connecticut showing Yale students how to throw pie pans in the air.

Biology History
In 1998, scientists announced the identification for the first time of a key brain chemical related to nicotine addiction, in the journal Nature. The researchers worked at the Pasteur Institute in Paris, Karolinska Institute in Stockholm and the research arm of Glaxo-Wellcome in Geneva. The addictive nature of nicotine is related to release of dopamine, a neurotransmitter chemical in the brain. The scientists had found the first of 11 subunits, or molecules, of the nicotine receptor in the brain of mice. Mutant mice lacking the b2 subunit in their brains did not react to nicotine. Humans have the same so-called b2 subunit. This is a step toward to designing a drug to block the receptor, and produce new smoking-cessation drugs.

Earth Science History
In 1610, Galileo dated his first letter describing telescopic observations in which he saw the moon's cratered surface using his twenty-powered spyglass. He wrote, "... it is seen that the Moon is most evidently not at all of an even, smooth, and regular surface, as a great many people believe of it and of the other heavenly bodies, but on the contrary it is rough and unequal. In short it is shown to be such that sane reasoning cannot conclude otherwise than that it is full of prominences and cavities similar, but much larger, to the mountains and valleys spread over the Earth's surface." Galileo went on to describe the phenomena in considerable detail, rehearsing, as it were, the observations and conclusions he was to publish more elaborately a few months later in Sidereus Nuncius.

Physics History
In 1930, the element Fr (francium) was discovered, the last naturally occurring element to be found. It is the heaviest alkali metal atom, with atomic number 87. Marguerite Perey joined (Oct 1929) the Institut du Radium in Paris in Oct 1929 as a technician for Marie Curie. Perey worked for years on actinium, which was anticpated to produce the new element by alpha decay. Finally, she was able to make the first entry about francium in her lab notebook on 7 Jan 1939, recording its half-life as about 20 minutes. A note in the Comptes Rendus was presented at the Académie des Sciences by Jean Perrin (9 Jan 1939). In his periodic table, Mendeleev anticipated its discovery, and provisionally named it eka-cesium. Perey gave it the name "francium." She first used the symbol Fa, but changed it to Fr.

Chemistry History
In 1941, the commercial production of magnesium first began in the U.S. at Freeport, Texas. Magnesium, the lightest of all structural elements, was extracted from seawater through an electrolytic process. Herbert H. Dow first extracted the metal from brine in Midland, Michigan, in 1916. Dow's Freeport magnesium plant played a key role during WW II when the lightweight metal became a critical alloy for airplanes. U.S. military aircraft production escalated, and as much as 2,000 pounds of magnesium was needed per plane. Today, magnesium alloys are die cast into a variety of automotive components. On 20 Nov 1998, Dow Chemical Co. announced it would shut down production at Freeport due to crippling damage during severe Gulf Coast storms.

Quote
Only the curious will learn and only the resolute overcome the obstacles to learning. The quest quotient has always excited me more than the intelligence quotient.
- Eugene S. Wilson