Epitaphs and Epigrams

Epitaph of the dumbass

Here the dead dumbass lay,

He died demonstrating his right of way

His case was clear, his will was strong–

But he’s as dead as if he had been wrong

 

Goodbye

Na na na na,

Na na na na,

Hey hey-ey

Goodbye

 

Epitaph epitaph

I died

And all I got

Was this stupid

Epitaph

 

Wife (epigram)

I died by the hands of life,

According to my murderous wife

Land With Tanks, Heavy Weapons; Wage Fierce Fight With Boches In Dynamic Dieppe Area Attack

The second article I have read is called, “Land With Tanks, Heavy Weapons; Wage Fierce Fight With Boches In Dynamic Dieppe Area Attack” based on the attempted raid on Dieppe in August of 1942.  Again, I was drawn to this article because I am fascinated by war history.  My great grandparents and great, great uncles all took part in world war 2 and did what they could to serve for this country.  The article really portrays the time era in the way its written grammatically, and reads how the attack was pro-dominantly Canadian soldiers on the raid.  This article gives only the detail that the government wanted the people to hear.  It tells how Dieppe was a large success when in reality it was a extremely ill advised attack that resulted in 907 deaths and over 2000 Canadians either injured or captured.  The objective of the raid on Dieppe was to relieve pressure on the USSR on the other side of Germany and to test the strength of the German defense on the western coast, which it did not accomplish and only boosted the moral of the  Germans. This article makes me feel very fortunate to be living in the time that I am because at this point in my great grandparents lives and their siblings lives is when this article would’ve been released originally.  Most of them at the time would have probably been in Britain or on the east coast in planes U-boat hunting.

 

https://www.warmuseum.ca/cwm/exhibitions/newspapers/…/dieppe_e.shtml

Nuclear Energy

Here is a quick background on nuclear power, radiation, nuclear fission and the discovery of pitchblende.  Uranium was discovered in 1789 by the German chemist, Martin Klaproth who named the element after the planet Uranus.  By passing electrons through an empty glass tube producing x-rays, ionizing radiation was discovered in 1895 by Wilhelm Rontgen.  In 1896 Henri Becquerel discovered that pitchblende (an ore that contained uranium and radium) caused a photographic pane to darken.  Becquerel then went on to show that this was caused by beta radiation (electrons) and alpha particles (helium nuclei) being emitted.  A third type of radiation from pitchblende was found by Paul Ulrich Villard in 1900 called gamma rays that were very similar to x-rays. In 1896 Pierre and Marie Curie gave the name ‘radioactivity’ to this occurrence, and in 1898 they isolated polonium (highly radioactive metal with no stable isotopes) and radium from the pitchblende ore. Radium was then put to use in certain medical treatments. In 1898 Samuel Prescott demonstrated that radiation destroyed bacteria in foods.

Now, onto my point as to why we shouldn’t go nuclear….

Nuclear power has both advantages and disadvantages.  On the plus side, nuclear power is both very powerful and efficient.  It produces very little emissions and has a minimal CO₂ output which could slow global warming in the long term.  Nuclear plants only produce 2-3% as waste compared to the 97-98% it produces as energy.  Nuclear research and power has also led to provide very efficient problem solvers such as Fat Man and Little Boy.  Nuclear plants are also constantly running so they are always providing power no matter what the weather condition unlike power sources such as wind turbines or solar panels. So nuclear power is all fine and dandy and the way of moving forward right?

But wait….

Nuclear power also has quite a dark side.  The waste produced by nuclear plants is extremely dangerous and there is not enough area for it to be stored properly to become safe to handle. Yes, there are rumors that the radioactive waste could be stored in space but that would be very expensive and put the astronauts at a huge risk of exposure and radiation poison.  Another problem with nuclear power is that it lead to a very horrific event back in 1945 when two atomic bombs were dropped on japan killing 333,000 innocent Japanese lives and leaving over 15,000,000 more homeless.  These atomic bombs have also made the area a very hazardous place and have put the Japanese people at a higher risk of being diagnosed with cancer.  Since then, Japan had 3 nuclear power plant meltdowns which led the deaths of 30 of the people working within the plant.  Radioactive leaks from plants can also kill the environment and mutate cells in beings and plants causing cancer and contamination.  Maintaining nuclear plants is also very expensive (would slowly become less expensive over time) and mining the uranium puts the miners in danger.  Radiation poisoning in the ground can last upwards of 200,000 years and makes the land difficult to live on and can be the source of many health problems.

Currently there are 444 nuclear plants in the world and they provide 11% of the power used.  To provide sufficient power to the world there would need to be 14500 nuclear plants in the world and there aren’t enough sites to build those on.  The plant needs to be close to a water source and away from high developed civilization as to not put the people in the area at risk of sickness.  This would make it almost impossible to go nuclear without a nuclear war from some terror group taking over and creating weapons to target world figures.  The previous is why I am against going full nuclear power.

The Magic of Light

https://www.exploratorium.edu/snacks/disappearing-glass-rods

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the above video demonstrates the optical illusion created when a piece of glass is put into a liquid with a similar refraction index as the glass.  The glass bends the light rays in a similar fashion as the water does causing the glass rods to “disappear” in the liquid.  The lines behind the tank of liquid shows that the glass of the box has a different index causing the stripes on the back wall to look distorted or “refracted” because it bends the light differently because of its index.

Wave Interference

Click Me

The above link is a link to the videos demonstrating different forms of waves.

Constructive waves are waves that are moving against each other but in the same vertical direction.  When they meet the amplitude is combined and once they pass they go back to how they were before they met.

Destructive waves are waves that are moving against each other but in opposite vertical directions.  When they meet the amplitude is add together reducing the overall amplitude.  Once they pass they return to how they were before they met.

Archimedes Challenge

The Catapult

During the past week in physics class we were challenged to construct an invention from a list of various inventions ranging from a simple lever system to the invention of the steam engine.  My group chose to make a mangonel catapult.  This catapult was invented in 400 BC by the ruler of Syracuse, Dionysius.  The purpose of the catapult was to hurl projectiles long distances and over walls and through them.  the invention of the catapult led to people wanting objects thrown harder, farther, and with more accuracy.  This lead the invention of gunpowder was invented in the 14th century putting all catapults to rest and destroying all need for them having them replaced with canons which were more accurate, and easier to move.

The process…

Day 1 – Stan and I drafted different types of catapults we could make and finalized our decision on the mangonel catapult.

Day 2 – Find and mark wood to the appropriate lengths for the mangonel catapult

Day 3 – assembly of parts

Day 4/5 – test and assess

Pictures on Drive link ( click here )

The Physics…

The physics behind a mangonel catapult is the following: an applied force acts on the arm of the catapult bringing it back into the throwing position gaining potential energy all the way down.  Once the arm is released, that potential stored energy is converted into kinetic energy as the projectile is launched. However, not all of the energy goes into the projectile.  Some of this energy is lost to the recoil of the catapult as the launch arm collides with the brace and some energy is lost to sound.  The initial velocity of the projectile is equal to the velocity of the cup at the end of the launch arm.  Once launched, the projectile is acted upon by air resistance as it travels through the air while the force of gravity pulls it down towards the earth’s surface.

Below are the sites referenced from.

https://www.real-world-physics-problems.com/catapult-physics.html

https://en.wikipedia.org/wiki/Mangonel

https://sites.google.com/site/physicsofcatapults/home/how-a-catapult…the…/mangonel

https://sites.google.com/site/physicsofcatapults/home/history-of-catapults

www.lordsandladies.org/mangonel.htm

www.medievalchronicles.com/medieval-weapons/castle…/mangonel-siege-weapon/
Camera used:
https://store.google.com/ca/config/pixel_2_specs

Newton’s Laws of Motion

Newton’s first law of motion states that, “if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.” This is also known as inertia.  This is demonstrated when the ball is at rest and doesn’t roll away from the camera shot.  This is also demonstrated when the ball is rolling and doesn’t stop until kicked.

MVI_6910-1d6r55q MVI_6911-1ifad4c

Newton’s second law of motion says that any object with a mass and an acceleration has an unbalanced force acting upon it. The law is also shown as F=ma.  This is demonstrated by Jed kicking the volleyball. His foot accelerates the ball forward.

MVI_6917-2gmetgw

Newton’s third law states that for every action, there is an equal and opposite reaction.  This is demonstrated when Jed hits the volleyball into the curtain and the curtain is disturbed and moved back from the volleyballs contact.

MVI_6914-1y4x20k