Bernoulli's Principle and Fluid Dynamics

• Bernoulli's principle is a fundamental concept in fluid dynamics
• Fluid speed increases with a corresponding decrease in pressure
• This reflects the conservation of energy within a fluid system

Kinetic Energy

• Kinetic energy refers to the energy an object posseses as a result of its motion

Potential Energy

• Potential energy refers to the energy an object posseses as a result of it's position in a force field or its internal stress
• Bernoulli's priciple shows the correlation between kinetic and potential energy
• An increase in kinetic energy will result in a decrease of potential energy, and vice versa
• This helps maintain a constant total energy

Application of Bernoulli's Principle

Airplanes

• Airplane wing designs are based on this principle
• Wings are shaped to make air flow faster over the top compared to underneath

Airflow Speed

• Faster air = Lower pressure
• Slower air = Higher pressure
• This pressure difference leads to an upward lift force, allowing the plane to take off

Curveball

• In baseball, a curveball's spin affects airflow around the ball
• This creates regions of high and low pressure

Pressure

• High pressure moves towards low pressure
• The ball consequently curves towards the low-pressure area

Chimneys

• Chimneys are designed to be tall to utilize increasing wind speed with altitude

Wind Speed

• High wind speed = Low pressure
• Low wind speed = High pressure
• The lower pressure at the top of the chimney helps expel smoke upwards and out

Polaris Dawn Mission Overview

• The Polaris Dawn mission featured the first all-civilian team to complete a spacewalk.

Mission Highlights

• The four Polaris crew members orbited 870 miles above Earth during their five-day mission.
• SpaceX astronauts flew further in space than any women in history on this mission.
• The Dragon capsule flew higher than any mission since the Apollo flights to the moon over 50 years ago.
• The mission contributes to SpaceX's goal of making life multiplanetary.
• The crew conducted 40 research experiments.
• The crew opened the entire capsule, exposing all four members to the vacuum of space in a high-risk operation.
• The mission provided valuable information about the challenges of space.
• The crew shared the music of Star Wars while in space.
• The team hosted a long-distance call with young cancer patients at St. Jude's Research Center.
• One of the crew members read to the kids from her book, "Kisses from Space," about a momma dragon who journeys to space.

Spacewalk Experience

• The spacewalk was an intense experience involving visual and physical senses, adrenaline, and pressure changes.
• The crew performed tests to develop new space suits.
• The view from outside the capsule included the blue line of the horizon and the depths of space.

Impact and Perspective

• The views of Earth were amazing and inspiring, giving the crew a desire to be more involved with nature and the world.
• The mission provided an opportunity to conduct science and research.

Fundraising Efforts

• The mission raised awareness and over $250 million for St. Jude's.
• Proceeds from the book "Kisses from Space" will contribute to St. Jude's Hospital.

Future Goals for Space Travel

• Space presents abundant learning opportunities.
• SpaceX aims to develop rapidly reusable spaceships.
• New forms of energy, 3D printing organs, and mining asteroids may be discovered in space.
• The goal is to diversify humanity's existence through space exploration.