Seeing the Smallest Thing in the Universe

The video explores the microscopic world, starting with cells and molecules, and delves into imaging techniques like electron microscopy. It discusses the limitations of visible light in imaging small particles and introduces particle colliders as a method to study subatomic particles. The video highlights discoveries like quarks and the Higgs Boson, and touches on string theory as a potential solution to the problem of infinite forces in point particles. The Large Hadron Collider's role in advancing our understanding of particle physics is emphasized.

What was the significant achievement in molecular imaging in 2009?

• The imaging of a single molecule at atomic resolution

• The discovery of the Higgs Boson

• The invention of the electron microscope

• The discovery of quarks

Why can't visible light be used to image very small structures?

• It has a wavelength too large to resolve small structures

• It is too dangerous

• It is too expensive

• It is not available in laboratories

How do scanning electron microscopes create images?

• By using visible light

• By bouncing electrons off the surface of objects

• By using magnetic fields

• By using sound waves

What principle allows particles to act like waves in electron microscopy?

• The law of conservation of energy

• Quantum mechanical principles

• The theory of relativity

• Newton's laws of motion

What was discovered at the Large Hadron Collider in 2013?

• The photon

• The neutron

• The Higgs Boson

• The electron

What are quarks believed to be made of according to string theory?

• Two-dimensional planes

• One-dimensional loops or strings

• Three-dimensional cubes

• Zero-dimensional points

What is the theoretical shortest measurable length in the universe?

• The wavelength of visible light

• The size of a quark

• The Planck length

• The diameter of a proton