Coach McGaha's Science Blog

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Physics 10-23-09

// October 23rd, 2009 // No Comments » // Uncategorized

We started class with only 15 minutes left before the bell due to the Drunk Driving demo.

We worked two examples from the F=ma problems. One cart system, one pulley problem.

Then we showed how to calculate tension. Read page 105 in text for explanation.

Worksheet is no longer due on Tuesday since we missed class time the last 2 days.

New due date will be assigned on Monday—if we get to have Physics !!

Official Opening!

// October 11th, 2009 // No Comments » // Uncategorized

While there is more to be done, it is now time to go Live with my new Physics and Chemistry blog for Byng High School.

Check it out, and leave a comment to test it out.

Thanks,
Coach McGaha

Welcome to my Blog

// May 18th, 2009 // No Comments » // Uncategorized

This is a test site for my new school site.

Below is a picture I took at Mrs. Allred’s retirement party.

My photos. Now you know me.

Science News

Vitamin D is a prognostic marker in heart failure, study finds September 5, 2010
Survival rates in heart failure patients with reduced levels of vitamin D are lower than in patients with normal levels. This is the finding of a major study carried out in the Netherlands. […]
New pump created for microneedle drug-delivery patch September 5, 2010
Researchers have developed a new type of pump for drug-delivery patches that might use arrays of "microneedles" to deliver a wider range of medications than now possible with conventional patches. […]
Mothers matter! High social status and maternal support play an important role in mating success of male bonobos September 5, 2010
The higher up a male bonobo is placed in the social hierarchy, the greater his mating success is with female bonobos, researchers have found. But even males who are not so highly placed still have a chance of impressing females. A new study finds evidence of direct support from mothers to their sons in agonistic conflicts over access to estrous females. […]
Did Viking Mars landers find life's building blocks? Missing piece inspires new look at puzzle September 5, 2010
Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life. […]
New bee species discovered in downtown Toronto September 5, 2010
A doctoral student who discovered a new species of bee in Toronto has completed a study of 84 species of sweat bees in Canada. Nineteen of these species are new to science -- never before identified -- including the new Toronto bee, which is actually quite common in eastern Canada and the US. The new research will help scientists track bee diversity, and und […]
Race, insurance status cited in uneven death rates among pedestrians hit by cars September 5, 2010
Uninsured minority pedestrians hit by cars are at a significantly higher risk of death than their insured white counterparts, even if the injuries sustained are similar, new research suggests. […]
Iron deficiency in heart failure September 5, 2010
Iron deficiency is a relatively common nutritional disorder that affects more than one third of the general population, and is often associated with chronic diseases such as inflammatory bowel disease, Parkinson's disease, rheumatoid diseases and renal failure. New research has demonstrated that iron deficiency also affects at least one-third of non-ana […]
Starvation keeps sleep-deprived fly brain sharp September 5, 2010
As anyone who has ever struggled to keep his or her eyes open after a big meal knows, eating can induce sleepiness. New research in fruit flies suggests that, conversely, being hungry may provide a way to stay awake without feeling groggy or mentally challenged. […]
Mosquitoes: Genetic structure of first animal to show evolutionary response to climate change determined September 5, 2010
Scientists have determined the fine-scale genetic structure of the first animal to show an evolutionary response to rapid climate change. […]
Global warming's silver lining? Northern countries will thrive and grow, researcher predicts September 5, 2010
Move over, Sunbelt. The New North is coming through, a geographer predicts in a new book. As worldwide population increases by 40 percent over the next 40 years, sparsely populated Canada, Scandinavia, Russia and the northern United States will become formidable economic powers and migration magnets, Laurence C. Smith writes. […]

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Physics 10-23-09

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