Couldn't find element LayerAd

Error finding content

Ask-a-Scientist: Phascinating Physics - Windows to the Universe

Shop Windows to the Universe

Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Phascinating Physics

This page contains answers to questions that have to do with physics. They explore time, the speed of light, the universal forces and much more! Click on a topic to see our "Quickie" questions archive or scroll down for more in-depth answers.

Quickie Phascinating Physics


Gravity/Light/Magnetism(42 questions)
Space-Time/Relativity(12 questions)
Particle Physics(15 questions)
Chemistry(36 questions)
Other(286 questions)


In-depth questions and answers

1)Is it possible to travel through time?
2)Is there an object in the universe that can travel faster than the speed of light?
3)What are the universal forces?
4)Why are atoms "smashed" in an accelerator? What is learned by that process?
5)How can a neutrino be detected?
6)Can you blow bubbles in space?
7)How do scientists know what an atom looks like, to make a model of one?
8)If 2 cars are traveling at the speed of light and the one in the back turns on its headlights, would the car in front be able to see them?
9)Is it true that positrons run down the time and electrons run up the time?
10)Are there any places that you can become weightless other than space?
11)If the Earth is round like a ball, why aren't we standing at odd angles around it?
12)Why is it said that a person traveling in spaceships at near speed of light comes back younger than his counterpart on earth?
13)What is Schrodinger's cat paradox?
14)What is the gravity assist, swingby approach used with spacecraft?
15)What is twice as cold as zero?
16)What is gravity and how does it work?
17)How do airplanes fly?


Shop Windows to the Universe Science Store!

Learn about Earth and space science, and have fun while doing it! The games section of our online store includes a climate change card game and the Traveling Nitrogen game!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

What are the retrograde motions of planets in the sky?

It depends on which type of motion you are asking about. If you take a birds-eye view from the top of the solar system all the planets orbit around the Sun in a counter-clockwise (or direct) direction....more

How do Astronauts Live in Space?

Have you ever wondered how astronauts live in space? Did you know they do a lot of the same things we do here on Earth? Astronauts eat, exercise and sleep just like we do. However, their food isn't always...more

How far is the Earth from the Sun, the Moon and all the other planets? How far are all of the planets from the Sun? Do you know of a software that tracks the planets in real-time?

There is a really neat internet program called Solar System Live that shows where all of the planets and the Sun are. If you go to that page, you'll see an image similar to the one on the left. Below the...more

Is it really true that man never really walked on the Moon?

The picture of the American Flag (the one put there by the Apollo astronauts) is waving (or straight out) in the wind. How could that be possible if there is no atmosphere on the Moon? Was it some sort...more

How many planets orbit the sun?

I was wondering if there is a new planet? Are there planets (a tenth planet?) after Pluto belonging to our solar system? What are the names of the new planets discovered in the solar system? Are there...more

Did the Big Bang create any black holes? Wouldn't the universe evolve differently if some of the original energy had disappeared in black holes?

When an object has a really high energy, it can form a black hole. This is called a primordial black hole. Primordial black holes were formed near the beginning of the universe. Primordial black holes...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF