The Titanic, a Story of Fire and Ice

Over 104 years ago, the massive ship Titanic was speeding along the ice laden coast of Newfoundland when it collided with an iceberg and sank to the bottom of the North Atlantic Ocean. But is it fair to put all the blame on the iceberg? New evidence has emerged to suggest that another element could have played an immense role in the Titanic’s ill fate. A photograph found in an attic in Wiltshire, southwest England, shows a 30-foot-long diagonal black mark on the starboard side of the Hull close to where the ship was pierced by the iceberg. What could’ve caused such a mark? Engineers at Imperial College London have analyzed the photos and determined the mark to be most likely caused by a coal fire in one of the three story bunkers. This coincides with another source of information, an official British inquiry. The inquiry unveiled that a fire had started in the Titanic’s coal stores 10 days before the ship even departed, and continued burning for several more days into its voyage. This fire would not have been a roaring fire as one might think, but more of a slow burn similar to that of hot coal in a grill. Over the period of 12 to 13 days however, it is speculated this constant heat would have greatly weakened the iron bulkheads and the hull causing them to become brittle. Add a ship traveling at high speed and a large iceberg and you have a recipe for disaster.

Even though the Titanic sank you can purchase one online that floats! Check out these links for toys & gadgets related to the Infamous Titanic! These can be used in experiments, for gifts or just for fun.

Inflatable 2-ft TitanicInflatable Titanic

 

 

 

 

 

 

Liquid Wave Titanic PaperweightLiquid Wave Titanic Papperweight

 

 

 

 

 

 

 

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Newton’s Laws of Motion

Are you familiar with Newton’s three laws of motion?

Newton's Cradle

In 1687 Sir Issac Newton published his works entitled Philosophiæ Naturalis Principia Mathematica. As intimidating as that may sound it is simply Latin for “Mathematical Principles of Natural Philosophy.” In this work he compiled three laws that are now renownedly known as Newton’s Laws of Motion. In this blog we will consider what the three laws are, why they matter and some modern-day examples to make them relatable.

  1. Newton’s First Law of Motion

An object at rest tends to stay at rest and an object in motion tends to stay in motion. However either can be changed due to an application of force.

This law is essentially Galileo’s concept of inertia and is known simply as the Law of Inertia. Newton stated this law to set the parameters for his next two laws. I’ll use a Fidget Spinner for an example. Before spinning, the object would likely not start spinning on it’s own! However, after spinning one, it would continue to spin forever if it were not for the effects (forces) of friction and gravity. It would be interesting to see an astronaut try this experiment while in space! 

 

2. Newton’s Second Law of Motion

Force equals Mass times Acceleration F=ma

This law explains the connection between the mass of an object, the acceleration and the resulting force. This equation also works backwards to determine the mass or acceleration of an object. For an example let’s use two vehicles on a crash-test course to determine their differences in force during impact. Let’s say Vehicle 1 is a Military Hummer with a weight of 7,700 lbs and Vehicle 2 is a Smart Car with a weight of 3,000 lbs. It seems we all know which would have more force but how do we reach that conclusion? Can Vehicle 2 impact with more force than Vehicle 1? Newton’s Second Law tells us. Lets take a look. Vehicle 1 weighing 7,700 lbs traveling at 60 mph will hit the wall dealing a force of 462,000 N. Vehicle 2 traveling at the same speed will only deliver 180,000 N of force. For Vehicle 2 to exert the same amount of force on the wall it would need to be traveling at 154 mph. That’s over twice as fast!

 

3. Newton’s Third Law of Motion

For every action there is an equal and opposite reaction

This Law is pretty easy to understand. Newton is telling us that for each and every force between two objects there is another force in the opposite direction of equal magnitude. An example of this is Newton’s Cradle. The cradle holds 5 balls of equal weight and size suspended from a foundation. If one ball is lifted and released it will hit the other four motionless ball and stop. However, the force will travel through three of the balls and cause the fourth to swing into the air as if you had pulled it up like the first! This scientific gadget can be used in different ways to yield different results (such as lifting two, three or even four of the balls). However, the law still remains the same. What we learn is that the ball that stops exerts its force toward the other four while at the same time the four exert a force on it.

 

Newton's Cradle

 

Now you have it! We really hope you enjoyed learning with us. Please come back to find more scientific knowledge and experiments! And feel free to share this page with any interested friends, family or students!