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Starts With A Bang!
The Universe is out there, waiting for you to discover it.
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Optics
Ethan Siegel
in
Starts With A Bang!
Apr 27, 2023
Why do mirrors flip left-and-right but not up-and-down?
If you look into a mirror, you’ll notice that…
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1.6K
38 responses
Ethan Siegel
in
Starts With A Bang!
Apr 11, 2023
Rainbows are actually full circles. A physicist explains.
Most of us only ever see a fraction of a…
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184
Ethan Siegel
in
Starts With A Bang!
Jul 9, 2021
Ask Ethan: Why Do Mirrors Flip Left-And-Right But Not Up-And-Down?
They don’t. If your mirror is on a…
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691
7 responses
Ethan Siegel
in
Starts With A Bang!
May 9, 2020
Ask Ethan: What Caused This Remarkable ‘Sun Pillar’ Shortly After Sunrise?
They say that seein’ is…
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152
1 response
Ethan Siegel
in
Starts With A Bang!
May 24, 2019
This Is Why Earth’s Oceans And Skies Are Blue
Neither one reflects the other; they’re both blue for…
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1.1K
9 responses
Ethan Siegel
in
Starts With A Bang!
Sep 29, 2018
Ask Ethan: Why Aren’t Rays Of Sunshine Parallel?
If the Sun is 93 million miles away, why does…
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924
4 responses
Ethan Siegel
in
Starts With A Bang!
Mar 7, 2018
World’s Largest Telescope To Finally See Stars Without Artificial Spikes
One of astronomy’s most…
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1.8K
6 responses
Ethan Siegel
in
Starts With A Bang!
Jan 12, 2018
Are Cloaking Devices Coming? Metalens-Shaped Light May Lead The Way
Combining nanotechnology of two…
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1.1K
6 responses
Ethan Siegel
in
Starts With A Bang!
Oct 7, 2017
Ask Ethan: Why don’t we build a telescope without mirrors or lenses?
Why not just put your detectors…
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1.1K
7 responses
Ethan Siegel
in
Starts With A Bang!
Jan 7, 2017
Ask Ethan: Why doesn’t Earth’s atmosphere turn sunlight into rainbows?
If a prism can do it, why not…
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65
8 responses