Posterity comes from Middle English posterite, from Anglo-French pusterite, from Latin posterus ("coming after")
Last week we discussed some of the early pioneers of aviation. Without them we probably would not have the different flying machines that we have today! The original term for these women and men were Aeronautical Engineers. Today, they are known as Aerospace Engineers to include not just planes and helicopters, but spacecrafts, missiles and rockets as well!
Basic Principles
Aerodynamics - the study of fluid flow around objects such as wings
Propulsion - the energy to move a vehicle through the air (or in outer space) is provided by internal combustion engines, jet engines, or rockets
Control or Flight Dynamics - the study of maneuvering vehicles to achieve the desired position and attitude
Structures - design of the physical configuration of the craft to withstand the forces encountered during flight
Aeroelasticity - the interaction of aerodynamic forces and structural flexibility, potentially causing flutter, divergence, etc
A helicopter's blades create lift and thrust that allow them to take off vertically, fly back and forth and hover. According to NASA, "The Bernoulli Principle describes how the speed of air and the pressure in the air are related. When the speed goes up, the pressure goes down and the opposite is also true."
A rocket's engine uses fuel to create gas then pushes the gas out the back of the rocket to make it move. Like most engines, rocket engines do not need air to work. It carries everything that it needs. This is why a rocket can work in space with no air!
For more information visit NASA.gov
The Engineering Design Process is a series of steps that are used when engineers are trying to work out a problem or they are building something.
Another thing that can also be learned by using this process is that not getting something right the first time is o.k! Failure gives way to future designs and brings an engineer one step closer to succeeding!
Science
Technology
Engineering Activities
Art
Math
Let's see who can design a paper helicopter that can hold the most weight and stays in the air the longest!
Materials
notebook paper
paper clips
ruler
measuring tape
stopwatch
Let's see who can design a rocket that can reach the ceiling first!
Materials
paper cups
drinking straws
paper clips
sandwich bags
masking tape
clothespins
balloons
#LEARNING is our Goal
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