Vroman's Bookstore - Janna Levin's Space

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Address
695 E. Colorado Blvd
Pasadena
CA

91101
United States

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Recent Tweets

Janna Levin

@JannaLevin

Cosmic Queries time! This is always fun. Neil dGT and I will be jamming on the shape of the universe, extra dimensions, and the dark side. @neiltyson @StarTalkRadio twitter.com/StarTalk…

3:59 pm · November 12, 2019

Janna Levin

@JannaLevin

If there are extra dimensions, they may have stagnated while only 3 became as large as the universe we observe. The others remained folded up in a cosmic origami. Too small to stick your hand in that direction, we are oblivious of their presence. #PWSciCon

12:00 am · November 12, 2019

Janna Levin

@JannaLevin

The transit of Mercury is underway. The Amateur Astronomers Association of New York is filming the innermost planet crossing in front of the sun from in our @PioneerWorks_ garden. Amazing. pic.twitter.com/TCRf…

5:38 pm · November 11, 2019

Janna Levin

@JannaLevin

When a bats uses echolocation, the sound may appear in the bat’s consciousness as an image. images.app.goo.gl/Qx…

9:04 pm · November 9, 2019

Janna Levin

@JannaLevin

The solar system orbits the supermassive black hole at the center of the Milky Way at 220 km/s. Take a breath and we've left our previous location well behind. We will orbit safely for a very long time. Anticipate far longer than the age of the universe twitter.com/mychaylo…

12:00 am · November 9, 2019

Janna Levin

@JannaLevin

The stable orbits are greater than about 6M in what we call geometric units, where M is the mass of the black hole. So, linearly. In more natural length units that's a distance > 6GM/c^2 twitter.com/EWischan…

11:23 pm · November 8, 2019

Janna Levin

@JannaLevin

If you happen to be in Los Angeles and want to check out something different, I'll be speaking at a symposium @Fulcrum_Arts tomorrow morning. I find myself in very good company...also, I am lounging in a friend's garden marveling at how pleasant LA can be. fulcrumarts.org/free…

9:58 pm · November 8, 2019

Janna Levin

@JannaLevin

And the RSVP list is full...stay tuned here or on IG in case we release a few extra spots early next week. I've got some real powerhouses coming on stage for that conversation. Expect high intensity. twitter.com/JannaLev…

9:43 pm · November 8, 2019

Janna Levin

@JannaLevin

The universe appears to be 4D. There are directions East-West & North-South, Up-Down, Past-Future. Human beings by the billions confirm this observation, but it might not be true. Sci Con 21: Extra Dimensions. RSVP required pioneerworks.org/pro…

6:00 pm · November 8, 2019

Janna Levin

@JannaLevin

It’s a metaphor for life twitter.com/PBSNatur…

7:57 pm · November 7, 2019