University of Illinois Urbana-Champaign
University of Illinois at Urbana-Champaign
The Grainger College of Engineering
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Frequently Asked Questions
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Ask the Van Questions by Subcategories
About the Physics Van
Electricity and Magnets
Light and Sound
Making Stuff Move
New and Exciting Physics
States of Matter and Energy
Stuff about Space
Underwater and in the Air
New and Exciting Physics: cosmology
Cosmological Constant and Gravity
Where was Big Bang
What Drives Accelerating Expansion?
Big Bang Picture
Cosmic Horizon Philosophy
Radiation Mass Density
Seeing Into the Past
Where are we Headed?
Where Does Energy go in Cosmic Redshift?
Gravity at a Distance
Relativistic Cosmology Questions
Gravity Waves and Big Bang
Light and Matter in the big Bang
Black Holes and Universe Expansion
Comunicating With Andromeda
Gravitational Waves & Black Holes
Can a Black Hole Shadow a Gravitational Wave?
Speed of Gravitational Waves
Can Other Branes Cause the Cosmological Constant?
Before the Big Bang?
Light After Big Bang
Does the Universe Spin?
Is Gravity Getting Weaker?
How did Newton get Universal Gravity?
Which way is Cosmically Down?
Where did Big Bang Happen?
Uniform Accelerating Expansion of Space/
What Happens When Entangled Photons get Redshifted?
Can the Event Horizons of two Black Holes Overlap?
Cosmic Horizon Problem
Is the Universe Infinite?
Is Cosmic Microwave Background From old Galaxies?
Fundamental Cosmic Questions
Are There Infinitely Many Stars?
Fine-tuning in a Multiverse
Cosmic Expansion and Wavelength of Light
Why do CMB Images Look 2-D
Universe Tearing Things Apart?
How do we Prove That Photons Exist?
Seeing Less of the Future Universe
Are we at the Center of the Universe?
Entropy in Universe Expansion
Energy and Information in Big Bang
Why Isn't Night sky Light?
Where is the Center of the Universe?
Information Capacity of the Universe
Fundamental Cosmology Questions
B-mode CMB Fluctuations and Quantum Gravity
Can we see our Galaxy in the Sky?
Are we Just a Decayed Vacuum?
Is the Universe an Isolated System?
Charge Distribution of a Black Hole
The Expansion Rate of the Universe is Increasing
Dark Matter and the Origin of the Universe
Dark Matter, Dark Energy, and the Rest of us Normal Matter People
Multiverses and Many Worlds
Alternative to Dark Energy?
Infinitely Slow Big Bang?
How Long Does Light Live?
At Big Bang
Seeing the Early Universe
Mass Density of Vacuum
Why so far Across Visible Universe?
Rotation of Earth With Respect to Center of the Galaxy?
Hubble Constant age of Universe
A Conscious Big Bang?
Are There Closed Systems?
An Alternate Cosmology
Entropy and the Fate of the Universe
Surface Tension of Space?
Is There an Audible Component to the Expanding Universe?
Photons in the Expanding Universe
Relativity and the Cosmic Microwave Background
Where are we in the Universe?
What is the Cosmological Constant?
Quantum Waves and the Expanding Universe
Newton's Third law and a big Crunch?
The Geometry of the Universe
Light's Sonic Boom
Cosmic Inflation and Relativistic Transforms
How did the Big Bang Work?
Was There a big Bang?
How old is the Cosmic Background Radiation?
Contraction of the Universe
Measuring Time After Big Bang
Extra Dimensions in Big Bang
Does the Universe Have net Spin or Rotation?
Why are Many Galaxies Disk Shaped?
Big Bang Soon?
Is the Universe Curved?
Can Dark Energy be Harnessed for Electrical Use?
Light in a Static Universe
Big Bang Baloney
Where Does the Element Boron Come From?
Constituents of our Solar System
Entropy and Energy Distribution
What's the Geometry of the Universe?
Origins of Dark Energy?
Universe From Nothingness?
Light From the Big Bang
Atoms in the big Rip
Viewing Birth of First Stars
Very Long Ago
Energy Conservation in General Relativity
Dark Energy or new Force?
Energy Conservation in Cosmology
Dark Matter and Energy
Just a Little Niche in the big Picture?
Distances in Different Universes
Origin of Universe?
Is the World Really Made of Dark Matter?
Higher Dimensions and Dark Matter and Energy
Size and age of the Universe
Being and Nothingness Again
Are the Stars we see Dead?
Age of Universe
Trying to see the Big Bang!
Why Fundamental Constant Values?
No Magnetic Monopoles
Conserved Angular Momentum
Big Bang Issues
Vacuum Zero-point Fluctuations
Helium and age of Universe
Dark Matter Real?
Why no Magnetic Monopoles
Gravity and Expansion
Looking Back in Time
Leaving This Existence
Dark Matter and Energy
Our Darkly Energetic Future
Space-time in 2 + 1 Dimensions
Cosmic Expansion and Energy