Why don't we fill an Airship with a Vacuum?

The video discusses the tragic maiden voyage of the British R101 airship, which ended in disaster due to bad weather and structural failure. This event marked the decline of hydrogen-filled airships, leading to the use of helium, which lacks the necessary lift for large airships. The concept of vacuum airships is explored, highlighting their theoretical buoyancy but also the immense structural challenges due to atmospheric pressure. Despite past attempts to fund such projects, no material currently exists that can withstand the pressure without being too heavy. The video concludes that while future materials may solve this, the risk of implosion remains a significant concern.

What was the main reason for the cancellation of the British airship program after the R101 crash?

• The airship was too expensive to maintain.

• The crash led to a loss of confidence in airship safety.

• The airship was outdated compared to airplanes.

• The airship failed to reach its destination on time.

Why is helium not ideal for large, commercial, rigid airships?

• It is too expensive to produce.

• It does not provide enough lift.

• It is highly flammable.

• It is difficult to store.

What principle allows an airship to float?

• Buoyancy

• Aerodynamics

• Gravity

• Inertia

What is the main challenge in constructing a vacuum airship?

• Finding a material that is both light and strong enough.

• Generating enough lift to overcome gravity.

• Ensuring the airship is cost-effective.

• Maintaining a constant internal temperature.

What is the equivalent pressure exerted by the atmosphere on a vacuum airship's hull?

• The weight of a Boeing 747.

• The weight of a single Tesla Model 3.

• The weight of a small car.

• The weight of six and a half Tesla Model 3s.