# What is the Double Bubble Conjecture and its Proof?

• MathematicalPhysicist
In summary, the Double Bubble Conjecture is a mathematical problem that proposes the idea that two soap bubbles can be joined together by a thin film of soap in a way that minimizes the surface area. It was first proposed by Belgian physicist Joseph Plateau in 1884 and has implications in various fields such as physics and mathematics. While it has not been fully proven, a computer-assisted proof in 2018 provided convincing evidence for its validity. The conjecture is related to soap bubbles as it explores their property of minimizing surface area.
MathematicalPhysicist
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what is it and how was it prooved?

The Double Bubble Conjecture is a mathematical conjecture that states that the arrangement of three equal-sized soap bubbles in contact with each other will result in two separate bubble chambers, with the third bubble being shared between them. In other words, it is the most efficient way to enclose two separate volumes with a common surface area.

This conjecture was first proposed by Belgian physicist Joseph Plateau in the 19th century, but it was not formally proven until 2000 by mathematician Frank Morgan. Morgan's proof relied on the use of minimal surfaces, which are surfaces that minimize surface area for a given boundary. He showed that the double bubble arrangement is the only possible solution that satisfies the conditions of minimal surface area and equal pressure at the three points of contact.

Morgan's proof was a breakthrough in the field of mathematics and has implications in various areas such as physics, biology, and materials science. It also has practical applications, such as in the design of packaging and architecture.

In summary, the Double Bubble Conjecture is a mathematical statement about the most efficient way to enclose two separate volumes with a common surface area, and it was proven by Frank Morgan using the concept of minimal surfaces.

## 1. What is the Double Bubble Conjecture?

The Double Bubble Conjecture is a mathematical problem that has not yet been fully proven or disproven. It states that two soap bubbles of different sizes can be joined together by a thin film of soap in such a way that the resulting structure has the lowest possible surface area.

## 2. Who proposed the Double Bubble Conjecture?

The Double Bubble Conjecture was first proposed by Belgian physicist Joseph Plateau in 1884. He observed that when two soap bubbles meet, they always form a 120-degree angle at the point of contact, regardless of the size of the bubbles.

## 3. Why is the Double Bubble Conjecture important?

The Double Bubble Conjecture has important implications in physics and mathematics. It relates to the concept of minimal surfaces, which have applications in fields such as material science, engineering, and even art. Solving the conjecture could lead to new insights and advancements in these areas.

## 4. Has the Double Bubble Conjecture been proven?

As of now, the Double Bubble Conjecture has not been fully proven or disproven. However, in 2018, mathematicians Thomas Hales and Samuel Ferguson provided a computer-assisted proof of the conjecture, which is currently the most comprehensive and convincing evidence for its validity.

## 5. How is the Double Bubble Conjecture related to soap bubbles?

The Double Bubble Conjecture is based on the behavior of soap bubbles, which are thin films of soapy water filled with air. Soap bubbles have the property of minimizing their surface area, which is why they form a spherical shape. The conjecture explores this property and how it applies to the joining of two bubbles.

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