Sunday, March 20, 2016
Wednesday, March 9, 2016
3D printed Subduction Boundary
Subduction boundary 3D printed then painted. Can you identify the features?
Wednesday, February 24, 2016
Tuesday, February 23, 2016
Winter Storm Warning
There is a Winter Storm Warning for Kent County. Below is from the NWS
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GRAND RAPIDS MI 347 PM EST TUE FEB 23 2016 MIZ040-045-046-051-052-056>059-064>067-071>074-240500- /O.UPG.KGRR.WS.A.0002.160224T1700Z-160226T0000Z/ /O.NEW.KGRR.WS.W.0005.160224T1500Z-160225T2100Z/ CLARE-MECOSTA-ISABELLA-MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON- ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- INCLUDING THE CITIES OF...CLARE...BIG RAPIDS...MOUNT PLEASANT... GREENVILLE...ALMA...JENISON...GRAND RAPIDS...IONIA...ST. JOHNS... HOLLAND...HASTINGS...CHARLOTTE...LANSING...SOUTH HAVEN... KALAMAZOO...BATTLE CREEK...JACKSON 347 PM EST TUE FEB 23 2016 ...WINTER STORM WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 4 PM EST THURSDAY... THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 AM WEDNESDAY TO 4 PM EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. HAZARDOUS WEATHER... * SIX TO TEN INCHES OF HEAVY WET SNOW. * STRONG NORTH WIND GUSTS TO 40 MPH. * SOME BLOWING AND DRIFTING DEVELOPING WEDNESDAY NIGHT. IMPACTS... * MAJOR TRAVEL DISRUPTIONS. * SCATTERED POWER OUTAGES. * POTENTIAL FOR SCHOOL CLOSURES ON THURSDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... * A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. * WEATHER PREPAREDNESS INFORMATION IS AVAILABLE ON LINE AT WWW.READY.GOV/WINTER AND HTTP://GO.USA.GOV/5OG.
Marines on Iwo Jima
Raising Flag on Iwo Jima
71 years ago the Marines raised the US Flag on Iwo Jima during WW2- Semper Fi
71 years ago the Marines raised the US Flag on Iwo Jima during WW2- Semper Fi
Monday, February 22, 2016
Significant Snow??
The weather models are predicting high probability for significant snow Wednesday into Thursday. As usual a difference of a few miles in the storm track will determine snowfall amounts.
Sunday, February 21, 2016
Star Spectra
Here is a great link for reviewing star spectra. CPPS remember that when the spectra is shifted to the red side it is evidence for an expanding universe.
Thursday, February 18, 2016
Evidence for the "Big Bang Theory"
Credit: www.faradayschools.com
The first piece of evidence is the cosmological red shift. when an object moves away from us the light waves are stretched to the longer wavelengths and lower frequencies. In an expanding universe light fro distant stars is said to be red shifted.
Credit: wikipedia
Cosmic microwave background radiation. This radiation is very low energy and very uniform throughout the universe. This energy is theorized to be leftover from the Big Bang.
Sunday, February 14, 2016
Aircraft Carriers on Lake Michigan
Heroes on Deck is a one-hour documentary about WW2 pilot training on Lake Michigan.
Read full article here.
Between 1943 and 1945, two U.S. Navy aircraft carriers stationed at Navy Pier in Chicago functioned as training platforms for about 17,000 pilots, signal officers and other personnel. Former President George H. W. Bush was among the pilots who learned to take off and land on the 500-foot long carrier decks.
Read full article here.
Between 1943 and 1945, two U.S. Navy aircraft carriers stationed at Navy Pier in Chicago functioned as training platforms for about 17,000 pilots, signal officers and other personnel. Former President George H. W. Bush was among the pilots who learned to take off and land on the 500-foot long carrier decks.
Friday, February 12, 2016
Thursday, February 11, 2016
Supernova
Sunday, February 7, 2016
Thursday, February 4, 2016
Difference Between an EM Wave and a Sound Wave
Difference Between EM Waves and Sound Waves
The link above does a very nice job of explaining the difference between mechanical and electromagnetic waves.
The link above does a very nice job of explaining the difference between mechanical and electromagnetic waves.
Monday, February 1, 2016
Sunday, January 31, 2016
Refraction of Light
Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media.
First World War Erupts in Europe
From History.com
On August 1, 1914, four days after Austria-Hungary declared war on Serbia, two more great European powers—Russia and Germany—declare war on each other; the same day, France orders a general mobilization. The so-called “Great War” that ensued would be one of unprecedented destruction and loss of life, resulting in the deaths of some 20 million soldiers and civilians and the physical devastation of much of the European continent.
The event that was widely acknowledged to have sparked the outbreak of World War I occurred on July 28, 1914, when Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, was shot to death with his wife by the Bosnian Serb nationalist Gavrilo Princip in Sarajevo. Over the weeks that followed, Austria-Hungary blamed the Serbian government for the attack, hoping to use the incident as justification for settling the problem of Slavic nationalism in the tumultuous Balkans region once and for all. However, as Russia supported Serbia, an Austria-Hungary declaration of war was delayed until its leaders received assurances from German leader Kaiser Wilhelm II that Germany would support their cause in the event of a Russian intervention. This assurance came on July 5; Austria-Hungary subsequently sent an ultimatum to the Serbian government on July 23 and demanded its acceptance within two days at the risk of war. Though Serbia accepted all but two of the ultimatum’s terms, and Russia declared its intention to back Serbia in the case of such a conflict, Austria-Hungary went ahead with its war declaration against Serbia on July 28, one month after the assassinations.
With that declaration, the tenuous peace between Europe’s great powers was shattered: Germany warned Russia, still only partially mobilized, that to continue to full mobilization against Austria-Hungary would mean war with Germany. While insisting that Russia immediately halt mobilization, Germany began its own mobilization; when the Russians refused the German demands, Germany declared war on the czarist empire on August 1. That same day, Russia’s ally, France, long suspicious of German aggression, began its own mobilization, urging Great Britain—the third member, along with France and Russia, of the Triple Entente alliance—to declare its support. A divided British government declined to do so initially, but events soon precipitated Britain’s move towards war as well. On August 2, the first German army units crossed into Luxembourg as part of a long-planned German strategy to invade France through neutral Belgium. France and Germany declared war against each other on August 3; that night, Germany invaded Belgium, prompting Great Britain to declare war on Germany.
For the most part, the people of Europe greeted the outbreak of war with jubilation. The great majority of people—within government and without—assumed that their country would be victorious within months, and could not envision the possibility of a longer conflict. By the end of 1914, however, well over a million soldiers of various nationalities had been killed on the battlefields of Europe, and there was no final victory in sight for either the Allies or the Central Powers. On the Western Front—the battle line that stretched across northern France and Belgium—the combatants settled down in the trenches for a terrible war of attrition, which would continue, in Europe and other corners of the world, for the next four years.
Wednesday, January 27, 2016
What was the Zimmermann Telegram
Most historians agree that American involvement in World War I was inevitable by early 1917, but the march to war was no doubt accelerated by a notorious letter penned by German foreign secretary Arthur Zimmermann. On January 16, 1917, British code breakers intercepted an encrypted message from Zimmermann intended for Heinrich von Eckardt, the German ambassador to Mexico. The missive gave the ambassador a now-famous set of instructions: if the neutral United States entered the war on the side of the Allies, Von Eckardt was to approach Mexico’s president with an offer to forge a secret wartime alliance. The Germans would provide military and financial support for a Mexican attack on the United States, and in exchange Mexico would be free to annex “lost territory in Texas, New Mexico and Arizona.” In addition, Von Eckardt was told to use the Mexicans as a go-between to entice the Japanese Empire to join the German cause.
The British cryptographic office known as “Room 40” decoded the Zimmermann Telegram and handed it over to the United States in late-February 1917. By March 1, its scandalous contents were splashed on the front pages of newspapers nationwide. Diplomatic relations between Germany and the United States had already been severed in early February, when Germany resumed unrestricted submarine warfare and began preying on U.S. vessels in the Atlantic. While many Americans remained committed to isolationism—President Woodrow Wilson had only just won reelection using the slogan, “He kept us out of war”—the Zimmerman cipher now served as fresh evidence of German aggression. Coupled with the submarine attacks, it finally turned the U.S. government in favor of entering the fray. On April 2, 1917, President Wilson abandoned his policy of neutrality and asked Congress to declare war against Germany and the Central Powers. The United States would cast its lot with the Allies four days later.
Source: http://www.history.com/news/ask-history/what-was-the-zimmermann-telegram
Cool Science Stuff
Mercury, Venus, Mars, Saturn and Jupiter will be simultaneously visible to the naked eye for the first time in more than a decade.
The spectacle is visible from Wednesday until 20 February, but experts warn that Mercury will become fainter towards the end of that window.
Experts advise stargazers to begin their viewing 45 minutes before dawn.
The display is made possible by the unusual alignment of the five planets along what's known as the ecliptic plane of their orbits. In practice, this means the planets lie near the plane of Earth's orbit, projecting as a line.
Can You Really Go Back in Time by Breaking the Speed of Light?
Tuesday, January 26, 2016
Monday, January 25, 2016
Light Waves
In a light wave the direction of the wave, magnetic field and electric field are all perpendicular to each other.
Light as a wave and particle click here.
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