![Scale aircraft in a wind tunnel](/sites/default/files/styles/resource_card_image_360x300_/public/2022-01/Wind_Tunnel_Test.jpg?itok=fGLZha3Y)
Pre-flight Testing
Backgrounders
Learn about some of the ways Aerospace engineers test new designs.
![Four Harvard training aircraft](/sites/default/files/styles/resource_card_image_360x300_/public/2021-12/harvards.jpg?itok=54yNGDe_)
How Planes Fly
Backgrounders
Learn about what gets planes up in the air, what keeps them up there, and what brings them down again.
![Luke Ingersoll en tenue de plongée](/sites/default/files/styles/career_image/public/2021-02/Luke%20Ingersoll.jpg?itok=bDqlRMgh)
Luke Ingersoll
Career Profiles
Occupational Diver
![Eric makes art with a straw, thanks to the Bernoulli principle](/sites/default/files/styles/resource_card_image_360x300_/public/2020-09/Eric_and_airpaint_0.jpg?itok=qYHAZRlx)
ScienceXplosion - Painting at the Bernoulli
Interactives
On this episode of ScienceXplosion, Eric makes his own airbrush and learns more about the Bernoulli Principle. It's not magic, it's science!
![Ketchup bottle and ketchup spill](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/ketchup_spill.jpg?itok=p-UzhYcC)
Why is ketchup so hard to pour?
STEM Explained
Ever go to pour ketchup on your fries… and nothing comes out? We’ll let the secrets about the viscosity of this non-Newtonian fluid out of the bottle!
![Smoke from a crop-duster shows wake turbulence](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/crop_duster_wake_turbulence.jpg?itok=fnV4IiYR)
What is Air Turbulence?
STEM Explained
Learn about the science behind the four main causes of turbulence.
![A variety of lava lamps](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Assortment_of_lava_lamps.jpg?itok=IsXk69sI)
Lava Lamps
STEM Explained
Lava lamps are very interesting to look at. But they are also interesting examples of buoyancy, heat transfer and solubility!
![Pitcher holding a baseball](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/pitcher-holding-a-baseball.jpg?itok=Q-P2jehX)
Why Do Curveballs Curve?
STEM Explained
Bernoulli’s equation is key to understanding why curveballs curve.
![Is it a liquid or a solid?](/sites/default/files/2019-08/is-it-a-liquid-or-a-solid.jpg)
Is it a liquid or a solid?
Hands-on Activities
Make some goop that has the properties of a liquid and a solid.
![is-it-possible-to-change-water-into-cola](/sites/default/files/2019-08/is-it-possible-to-change-water-into-cola.jpg)
Is it possible to change water into cola?
Hands-on Activities
Explore the concept of displacement of fluids in this hands on activity.
![Construction vehicles use hydraulics. Image © Djahan, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Construction%20vehicles%20use%20hydraulics.jpg?itok=9wlkKEIz)
Hydraulics 101
STEM Explained
Hydraulics power many of the large machines you see around you.
![How can I make a Vortex Cannon?](/sites/default/files/2019-08/how-can-i-make-a-vortex-cannon.jpg)
How can I make a Vortex Cannon?
Hands-on Activities
Build a vortex cannon and discover how fluids (liquids and gases) can move in unique ways due to their physical properties.
![Container ship in St. John’s harbor, Newfoundland, Canada](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Container_ship_St._John%27s_NL.jpg?itok=2paJF3ET)
Why do Ships Float?
STEM Explained
Have you ever been on a ship and wondered how you’re staying afloat? The answer is buoyancy!