Articles tagged with: science

Today in History, May 8th

1541 Hernando de Soto discovers the Mississippi River which he calls Rio de Espiritu Santo.
1559 An act of supremacy defines Queen Elizabeth I as the supreme governor of the church of England.
1794 The United States Post Office is established.
1794 Antoine Lavoisier, the father of modern chemistry, was executed on the guillotine during France’s Reign of Terror.

Antoine-Lavoisier

Antoine Lavoisier

1846 The first major battle of the Mexican War is fought at Palo Alto, Texas.
1862 General ‘Stonewall’ Jackson repulses the Federals at the Battle of McDowell, in the Shenendoah Valley.
1864 Union troops arrive at Spotsylvania Court House to find the Confederates waiting for them.
1886 Atlanta pharmacist John Pemberton invents Coca Cola.
1895 China cedes Taiwan to Japan under Treaty of Shimonoseki.
1904 U.S. Marines land in Tangier, North Africa, to protect the Belgian legation.
1919 The first transatlantic flight by a navy seaplane takes-off.
1940 German commandos in Dutch uniforms cross the Dutch border to hold bridges for the advancing German army.
1942 The Battle of the Coral Sea between the Japanese Navy and the U.S. Navy ends.
1944 The first “eye bank” was established, in New York City.
1945 President Harry S. Truman announced in a radio address that World War II had ended in Europe.
1952 Allied fighter-bombers stage the largest raid of the war on North Korea.
1958 President Eisenhower orders the National Guard out of Little Rock as Ernest Green becomes the first black to graduate from an Arkansas public school.

Ernest Green

Ernest Green

1958 Vice President Richard Nixon was shoved, stoned, booed and spat upon by anti-American protesters in Lima, Peru.
1968 Jim “Catfish” Hunter of the Oakland Athletics pitched a perfect game against the Minnesota Twins in Oakland.
1970 Construction workers broke up an anti-war protest on New York City’s Wall Street.
1970 The album “Let It Be” by the Beatles was released.
1973 Militant American Indians who had held the South Dakota hamlet of Wounded Knee for 10 weeks surrendered.
1978 David Berkowitz pleaded guilty in Brooklyn to the “Son of Sam” killings.
1984 The Soviet Union announces it will not participate in Summer Olympics planned for Los Angeles.
1987 Gary Hart, dogged by questions about his personal life, withdrew from the race for the Democratic presidential nomination.
1995 Jacques Chirac is elected president of France.
1999 The Citadel, South Carolina’s formerly all-male military school, graduated its first female cadet.

Nancy Mace

Nancy Mace

Today in History facts are from various sites including, but not limited too: the History Channel, The New York Times, WHG Historynet.com, and HistoryOrb.com.

History of Malaria

I have found that my favorite part of school is trying to turn every class paper or essay into a history lesson. I’ve struck again! Science is easily the best subject to do this with. Diseases and inventions documented thousands of years ago; science’s affect on culture, countries, and economies; and how science has shaped the world are all interesting, scientific and historical. Whether you want to know about the history of the polio vaccination or how rubber was invented…I turn science into history here, at Hankering for History! While the history of malaria may not seem interesting, you may be surprised how it has affected America–especially on the battlefield.

Roman-Bath

A Roman Bath, an example of implementations to thwart malaria.

Credited by historians for having the largest impact on the fall of the Roman Empire and contributing to a large percentage of battlefield deaths during every war that America has ever participated in, malaria has outlasted all democracies, dictatorships, and monarchies. Malaria, an infectious disease caused by parasitic protists of the Plasmodium genus, has been around for tens of thousands of years. Malaria is most often passed human-to-human by the mosquito. Though documented historical references of malaria can be traced back as early as 1600 B.C.E., to the Vedic, it was the Greek physician Hippocrates that correctly drew the parallels between malaria and its ability to thrive in tropical areas.

“Roman fever” as it was called in fifth century C.E., was the collective name of the symptoms that were present then and still persist in today’s strands of malaria. Malaria presents symptoms starting with those similar to flu-like symptoms: headache, fever, and vomiting. The most prevalent symptom of malaria—and how it most stood apart from other illnesses—is paroxysm; this cyclical event brings on days of sudden coldness followed by days of fever. Even though medical professionals have been able to recognize the symptoms of malaria for thousands of years, it can only be properly diagnosed through microscopic examination of blood.

Malaria epidemics, transported by travelers, conquering armies, and through slave trade, plagued Europe for a long time until the Romans discovered a way to combat this parasitic disease. Malaria received its name from the Roman’s Italian phrase mal’ aria, which translates to “bad air.” The Romans discovered that malaria was prominent in areas around foul-smelling swamps; thus, the Romans created a drainage system to ensure that stagnant, malaria-infested waters would be flushed out of the city. While malaria is most commonly associated with poorer areas, it is ironic that it was a contributor to an invention that would allow cities and civilizations to become prosperous and thrive.

malaria-mosquito

It would not be until the 1880s that a string of scientist would discover the true cause and distribution method of malaria. Starting in 1880, Charles Louis Alphonse Laveran, a French army doctor, noted that the red blood cells of malaria patients were infected with parasites. In 1881, Carlos Finlay, a Cuban doctor, published evidence that the disease was possibly transmitted by the mosquito. In 1894, Sir Ronald Ross, a Scottish physician, and Sir Patrick Manson, the “father of tropical medicine,” provided unquestionable evidence that the mosquitos carried the blame for passing the malaria parasite through its salivary glands.

As noted earlier, malaria is commonly associated with poverty; however, economic trends now show that it is one of the primary causes of poverty. It has been estimated that the impact of malaria cost Africa $12 billion USD, annually. In countries where malaria is prevalent, it is responsible for 50% of illnesses that led to patients seeking medical attention. Another negative impact that malaria presents to the economy is in the production of counterfeit drugs. Specifically in Asian countries, counterfeit anti-malaria medicines have run rampant costing patients and medical facilities millions of dollars.

Malaria-history-world-war-2

World War II Malaria Posters

Even though malaria is now predominately found in sub-Saharan Africa and South Asia, it was once a major problem in every country; malaria plagued New World Americans from day one. In 1607, malaria plagued the colony of Jamestown and took the lives of half of the settlers. During the American Civil War, an estimated 1.2 million cases of malaria were reported (North and South combined). Even after the discovery of how malaria was contracted and spread, over 500,000 cases of malaria were reported in American soldiers during World War II. There was such a large concern over malaria that the CDC formed the Malaria Control in War Areas (MCWA), in 1942, to ensure that American military bases stayed malaria free.

With 3.3 billion of the world’s population living in “areas at risk of malaria transmission” and the World Health Organization estimating that 655,000 annual deaths are due to malaria, it is surprising that more resources are not funneled into a malaria vaccine. On average, 1,500 cases of malaria are reported every year in the United States of America. Until a vaccine is found, there are numerous safeguards to ensure that travelers do not contract malaria: anti-malaria medications, insecticide-treated nettings, and mosquito sprays are heavily recommended by the CDC.

You Can’t Blame McDonald’s for This…

Everyone wants to blame McDonald’s and their Super-Sized fries for America’s obesity problem. Luckily for me, I can now eat the 550 calorie Big Mac knowing that my eating habits are not the culprit for my clogged arteries. It has always been thought that heart disease was caused by unhealthy lifestyles, but thanks to science, McDonald’s is in the clear–for now.

In a recent scientific study it was found that 137 mummies, from four different regions, were CT scanned and results from these scans showed that the mummies had calcified plaque in the walls of their arteries. The testing of all 137 mummies proved that statistically, a person living thousands of years ago, is just as like to have a cardiovascular disease as those alive today.

mummies-heart-disease

Dr. Greg Thomas, cardiologist and senior member of the study, concluded that:

“We’ve oversold the ability to stop heart disease. We can slow it down, but to think we can prevent it is unrealistic.”

For more on this subject, check out Nature.com’s article Mummies reveal that clogged arteries plagued the ancient worldor check out Dr. Thomas’ findings at The Lancet. (You have to pay to read more than the first few paragraphs.)

Today in History, March 1st

A few of the great historical events that happened today in history, March 1st!

1642 York, Maine becomes the first incorporated American city.
1692 Sarah Good, Sarah Osborne and Tituba are arrested for the supposed practice of witchcraft in Salem, Mass. Sarah-Goode-Sarah-Osborne-and-Tituba
1781 The Continental Congress adopted the Articles of Confederation.
1790 Congress authorized the first U.S. census.
1845 President John Tyler signed a congressional resolution to annex the Republic of Texas.
1867 Nebraska became the 37th state.
1872 Congress authorized creation of Yellowstone National Park.
1922 Israeli Prime Minister Yitzhak Rabin was born in Jerusalem.
1940 The novel “Native Son” by Richard Wright was published.
1954 Puerto Rican nationalists opened fire from the gallery of the U.S. House of Representatives, wounding five congressmen.
1961 President John F. Kennedy established the Peace Corps.
1968 Country musicians Johnny Cash and June Carter were married.
1974 Former Nixon White House aides H.R. Haldeman and John D. Ehrlichman and former Attorney General John Mitchell were indicted on obstruction of justice charges related to the Watergate break-in.
1981 Irish Republican Army member Bobby Sands began a hunger strike at the Maze Prison in Northern Ireland. (He died 65 days later.)  Bobby-Sands
2003 Suspected Sept. 11 mastermind Khalid Shaikh Mohammed was captured by CIA and Pakistani agents near Islamabad.
2005 BTK serial killer Dennis Rader was charged in Wichita, Kan., with 10 counts of first-degree murder. (He later pleaded guilty and received multiple life sentences.)
2005 A closely divided Supreme Court outlawed the death penalty for juvenile criminals.
2012 Online publisher and conservative blogger Andrew Breitbart died in Los Angeles at age 43. Andrew-Breitbart

Today in History facts are from various sites including, but not limited too: the History Channel, The New York Times, WHG Historynet.com, and HistoryOrb.com.

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The (Hardcore) History of Rubber

rubber-latex

Natural Rubber latex from a Para Tree

Rubber bands, rubber ducks, and the tire are the first things that come to mind when some people consider the extensive uses of rubber—yes, some rubber ducks are still made from rubber. While most people are familiar with rubber as a commodity, they are not familiar with how it is produced. If I told you that rubber was grown, like a crop, you probably would not believe me; however, this is the case. While Brazil’s main exports are now manufactured and semi-manufactured goods, they were once basic raw goods: sugar, gold, and rubber.

Rubber, like most global-impacting inventions, has a history that goes back further than most would imagine. The first known use of rubber dates back to 1800 B.C. It was during this time period that Mesoamerican culture participated in a team sport—much like today’s version of racquetball—which consisted of a round rubber ball.  This, however, was not just a sport for fun, but was believed to have an impact upon one’s survival. Bernardino de Sahagun, a 16th-century Spanish priest, wrote, “These wretches played for stakes of little value and since the pauper loses quickly, they were forced to gamble their homes, their fields, their corn granaries, their maguey plants. They sold their children in order to bet and even staked themselves and became slaves, to be sacrificed later if they were not ransomed.”

Road-to-el-dorado-ball-game

You may remember this scene from DreamWorks’ The Road to El Dorado.

While this quote depicts one view, this blood-sport was so much more. Winners were heroes, praised and showered with treasures; losers were sacrificed, it was believed that their bloodshed ensured rain; and the game of ōllamaliztli lived on for thousands of years. While this sport has changed considerably, versions of it—like ulama—are still played today. (You can watch a short clip of ulama here,)

The major source of natural rubber comes from the Pará rubber tree (Hevea brasiliensis), in the form of rubber latex. These rubber latex producing trees were originally found in South America, predominately Brazil. The way that the rubber latex is extracted from the tree is comparable to the process used to obtain maple syrup from maple trees.

One of the first inventions using rubber was the eraser, invented by Joseph Priestley. It was found to erase pencil marks when rubbed over them, hence the name rubber. Due to the multiple applications of rubber, specifically for waterproofing materials, creating shoe soles, and its part in the mass production of tires, there were time periods called “Rubber booms” (1879-1912 and 1942-1945) where rubber was needed and Brazil profited greatly from their enormous supply of Pará rubber trees. The popularized concept of the American Gold Rush would apply perfectly as a correlation to Brazil and the attempts of those to strike it rich because of this country’s abundance of Pará rubber trees.

rubber-boom-slaves

Slaves of Rubber Barons during the Rubber Boom.

Because of the Industrial Revolution and Charles Goodyear’s ability to vulcanize rubber to produce car tires, the regions that had Pará rubber trees to harvest prospered. Unfortunately, the indigenous population in Brazil and its surrounding countries were taken advantage of. Rubber barons, those who owned rubber plantations, rounded up all the men and women and forced them into slavery. This was not sweatshop factory type slavery, but brutal and inhumane slavery. One described the sight of how slaves were treated as “…so much violence, so much ignominy, egoism and savagery and so little appreciation of human life.”

Much to the dismay of Brazil (and its economy), seeds from the Pará rubber tree plantations were smuggled out, in 1876, and taken to England. While the climate was not tropical enough to grow these trees in England, the seeds grew well in areas, such as India, Sri Lanka, Thailand, and Malaysia. As these countries started to produce rubber (and the fact that people did not like the cruelty of rubber barons), the amount of rubber latex coming out of Brazil declined drastically. It would not be until World War II, when Japan invaded Malaysia and cut off America and Europe’s rubber supply, when Brazil would become a player in the natural rubber trade again.

Once World War II ended, rubber exportation all but ended in its original origin of South America. Today, 94% of natural rubber comes from Asia. That being said, natural rubber production, in all countries, has dropped. With improvements in the creation of synthetic rubbers, the need for natural rubber has declined. Estimates from 2001 and 2005 approximate that 60% of rubber produced was synthetic rubber.

 

“Ancient Mesoamerican Team Sport Examined in New Art Exhibit.” Art Business News Sept. 2001: 116. Academic OneFile. Web. Feb 26, 2013.

“The International Natural Rubber Market, 1870-1930.” Frank, Zephyr. 2010. Economic History Association. Web. Feb 26, 2013

Why do they hide?” Web. Feb 26, 2013