Churchill, A Necessary Leader

By A. G. Moore

Winston_Churchill_in_South_Africa_3
Winston Churchill, 1899, as he made a triumphant appearance after escaping from a Boer prison of war camp.

If there are people marked by history to play large roles in the course of human events, Winston Churchill was surely one of these. It might be said that fate was a constant companion on his remarkable path, but in each instance, when fate offered opportunity it was Churchill who gave the final measure. He was audacious, brilliant and ambitious. His character and experience prepared him ideally for the most important task of his life: to hold the British nation fast when all others had fallen before advancing German forces in WWII.

Winston Churchill’s political career began inauspiciously in 1899 when he ran unsuccessfully for a seat in Parliament. This was not to be his only electoral defeat. Over a career that spanned more than 50 years there were failures and successes. There were missteps and achievements. Some of the qualities that led to the missteps were among those which allowed him to lead steadfastly and dramatically during the grim days of WWII.

Churchill was tempered by war. He was attracted to military action and at times placed himself in the front line of battle when more secure environments were open to him. By the time Churchill had won his first seat in Parliament he’d seen action in the Sudan, the Northern Frontier (in what is today Pakistan) and South Africa. In the last of these campaigns he earned instant international notoriety by negotiating an escape from a Boer prison of war camp after a brief period of captivity (4 weeks). In each of his military engagements, death was a distinct possibility; it was a consequence suffered by many of his companions–but not Churchill.

Throughout his career Churchill’s political decisions were shaped by a mindset that held firm to the idea of British empire and an inclination to favor war over negotiation. Long before WWI, in anticipation of German ambitions, he advocated for the building of a strong navy. He did so, some believe, at the expense of developing a powerful ground capability. His strategy, it is widely suggested, led to a disastrous defeat in the Dardanelles during the first world war.

Just as Churchill did not personally avoid the battlefield, he forcefully argued against those who would appease aggressors. He saw danger in Bolshevism and wanted to take on Stalin long before the Cold War. He was vociferous in criticizing Chamberlain for making concessions to Hitler in 1938 and he argued forcefully for a build-up of Britain’s nuclear capability after WWII.

Churchill’s view of Britain’s colonies more reflected a Victorian colonialism than a 20th century appreciation of self-determination. He fiercely resisted Indian independence and dispatched the Black and Tans to put down Irish republicanism in 1919.

At any point in his long career, if Churchill had faltered and his career had been cut short, there might have been little mention of him in the history books. But fate served the stalwart leader well. After the 1940 fall of France to German forces in WWII, and before the 1941 entry of the US into the war, Churchill marshaled all the instincts that had served him well and not so well in the past. He was poised in that moment to become a man of history, a man of destiny–perhaps flawed in another context but exquisitely prepared to steer the ship of state in a moment when Britain stood alone before the German aggressor.

˜˜˜

If you found this discussion interesting, you might also be interested in one of  Rhythm Prism’s books that deal with colonialism: The Modern British Empire: A Brief History and Exploration and Conquest: Stories of Indigenous Peoples.

The Modern British Empire is appropriate for students who are in middle school or high school.  It contains a study guide that reinforces concepts covered.

Exploration and Conquest is appropriate for all mature readers.  The book  (172 pages) uses pictures to help tell the story of European exploration.  The discussion covers the impact of colonialism on indigenous peoples from four continents and from islands that spread across the wide seas.

exploration-cover-rev-site

cover brit for site

Lise Meitner, Otto Frisch, Niels Bohr and the Atomic Bomb

By A. G. Moore

(Adapted from the book: What is Radioactivity? The Basics)

6/11/2015

bohr einstein

(This article was adapted from the book What is Radioactivity? The Basics)

It would be difficult–perhaps impossible–to write about the development of atomic science without mentioning the contributions of Niels Bohr and Lise Meitner.

While Ernest Rutherford is credited with describing the nucleus of an atom, it’s Bohr who gave him the clue as to how electrons are arranged on the outer shell of the atom.

Niels Bohr collaborated with many of the most important physicists of the 20th century. In the picture above, he is shown with Albert Einstein. Not only did the work of both men contribute to the development of the atomic bomb, but both were refugees from Nazi ideology. In fact, if it hadn’t been for the Nazis in Germany and Hitler’s genocidal policies, these two scientists probably never would have added their voices to the chorus that urged the bomb be built.

Bohr was born in Denmark. When Germany invaded Denmark, Bohr fled to Sweden and, when Sweden became unsafe he fled with his family to England.  In the race to unlock the power of the atom, Niels Bohr played a critical role, but he was only one of several people who were responsible for understanding how nuclear fission worked. Energy derived from nuclear fission–splitting the atom–powered the atomic bomb.

It was a colleague of Bohr’s, Otto Frisch, who came up with the term ‘nuclear fission’.  Before 1938, the two words ‘nuclear’ and ‘fission’ had never been put together.

Frisch worked in Bohr’s Copenhagen laboratory.  His aunt, Lise Meitner, was  a remarkable physicist who, before 1938, was working with German scientists. These physicists and chemists were trying to split the atom and unlock the enormous energy contained within.  However, Meitner was forced to flee from Germany in ’38.  It was then that she met up with her nephew, Otto, in Stockholm and told him about the work her German colleagues were doing.

Frisch was excited. He and his aunt discussed the issues that prevented the Germans from making progress.  Together, Frisch and Meitner came up with a solution. They discovered a way to unleash the power of the atom.

Frisch contacted Bohr, who was in the US at the time.  Bohr told American scientists about the German efforts to make a bomb and about the progress Frisch and Meitner had made toward splitting the atom.  This information was the final push that led to the American and British determination to build a bomb. The feeling was,  if Germany was so close to owning the weapon, the world was in danger.  The scientists, and the governments who hired them, believed the US and Britain needed to get the bomb before Germany did.

Ironically, Germany never did make an atomic bomb, despite the progress Meitner had witnessed when she worked there. Germany’s failure, many believe, was the result of Nazi ideology.  All the Jewish scientists, including Meitner, Einstein and Frisch, had to leave the country. And, many excellent scientists who might have helped to build the bomb were ordered instead to join the military.  This ‘brain drain’ likely resulted in the failure of Germany’s nuclear program.

Once the US and British governments made the commitment to build a bomb most of the brightest nuclear scientists aided in the effort.  One who did not, who refused to build such a weapon, was Lise Meitner.  As a matter of fact, to the end of her life she expressed regret for the contribution she made to physics which enabled the bomb to be built.

what is radioactivity cover rhythm study incl

How Radiation Causes Cancer

Ever since the first atomic bombs were detonated in 1945 there has been an ongoing  debate about the  hazards of exposure to radioactive material.  On one side it is argued that any exposure presents a risk to health.  On the other side it is argued that the risk of exposure is exaggerated by an anti-nuclear lobby. However, both sides agree on this point:  at very high doses radioactive material can sicken and even kill.

Below the acute level, the debate usually centers around the link between exposure and cancer. Research on the nature of this link has been a global endeavor since 1945.  In order to interpret the results of the research, a basic understanding of cancer genesis is necessary.

Simply put, cancer is the consequence of abnormal cell reproduction.  Tissue–such as skin, lungs, gut–are comprised of cells, which are themselves made up of molecules. The basic building block of a molecule is the atom.

Ionizing radiation–radioactive energy–damages cells on the atomic level (that is, it damages the atom). What this means is that the very structure of an atom–and therefore of a cell–can be altered when it is exposed to radioactive material.

Routine cell death is essential to healthy tissue. It happens all the time. There are two kinds of cell death: programmed (expected)  and traumatic (unexpected).  In either scenario, dead cells must be cleared from the bloodstream and replaced if an organism is to continue to function well. It is in the replacement of dead cells that the risk of cancer lies.

Replacement is supposed to be an orderly process. The directions for this process are contained in the cell’s DNA. But what if the DNA has been damaged and the directions for replication are garbled?  What if a replicating cell receives the wrong message and doesn’t reproduce properly?  In that event, a cell may form something that is like the original but is in some way ‘strange’.

Let’s take the liver as an example.  Liver cells replace themselves through replication.  If, however, the DNA of the replicating cells is somehow damaged, the new cells don’t come out exactly right.  These ‘strange’ cells may then survive and replicate, creating more imperfect cells, like themselves.  These ‘strange’ cells do not perform the functions of the liver, because they’re not designed to do that. And yet, they  remain in the liver, replicating, forming tissue–‘strange’, invasive tissue. That would be a cancer.

Of course there’s a lot more to cancer than this simple description suggests. But essentially, this outline describes how cancers may begin. Inherent in this process is the potential for metastasis.

In the case of metastasis (cancer has spread to another part of the body) the ‘strange’ cells hitch a ride in the bloodstream and travel to other sites in the body.  There they take root, replicate and once again become invasive. Metastatic liver cells metastasize most commonly in lymph nodes, bones and lungs.

Back to the debate about the link between radioactive material and cancer: Radioactive material interferes with cell replication because it has the ability to change the structure of an atom: it does this through ionization.  Ionization involves stripping electrons from the outer shell of an atom.  When that happens, electrons become free agents. These electrons can travel around doing mischief.  They may link with other electrons and break chemical bonds. This breakage can occur inside DNA, the critical reservoir of information for cell replication.   Damaged DNA will give the wrong instructions to a replicating cell. The consequence of this error may be the production of a cancer cell.

Of course, cancers develop in the absence of ionizing radiation. Cells make mistakes all the time. They reproduce so often that mistakes are inevitable. Sometimes the mistakes, or mutations, benefit an organism. These mutations may be kept because they may enhance the chance that a species will survive.  Sometimes, however, a mutated cell is not cast off and does not benefit an organism. The cell may take root in tissue and begin to propagate right alongside normal cells.

To be sure, the fact that ionizing radiation can cause cancer doesn’t mean it does cause cancer. This link must be proven if it is to be accepted as established fact. The proof, evidence strongly suggests, may be found in experience and data derived from that experience.

Ever since the atomic bombs were detonated over Hiroshima and Nagasaki researchers have been collecting health statistics on survivors of the blasts. About 200,000 of these have been tracked. This is a disparate group: dose levels varied greatly. There were both male and female, young and old victims.   All of the information collected on survivors–dose level, age, gender–was analyzed.  By comparing the health profiles of these individuals with profiles of those who were not exposed to the blasts, scientists believe they’re able to approximate the health risks of exposure to radioactive material.

A few things appear to be certain: there is a link between exposure to ionizing radiation and cancer.  Existence and severity of effects are dose-dependent: those who receive the highest doses are most likely to develop a cancer at some point. Age at the time of exposure is also important. The younger the person at time of exposure, the more likely  that cancer will someday develop. Gender plays a role: women experience more adverse health consequences than men.

Although the discussion in this essay is about the link between cancer and exposure to radioactive material, data from survivor studies reveals that health consequences were not limited to cancer. Among the conditions noted to occur at elevated levels in the survivors are: cardiovascular, digestive, neurological and thyroid diseases.

“Safe” dose guidelines that exist today have been derived from A-Bomb survivor studies.   It is these “guidelines” around which so much of the current debate revolves. This is a debate usually left to ‘experts’.  Perhaps, though, given the stake that everyone has in the establishment of safe guidelines, more of us should get involved in this debate. Perhaps it is time for a little self-education, because everyone is potentially affected by the decisions of the ‘experts’.  This is a conversation in which we should all take part.

For more information on radioactivity, an easy-to read book::What is Radioactivity?The Basics

what is radioactivity for wordpress

https://rhythmprismpublishing.com/what-is-radioactivity/