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Misconceptions About the Universe

Can we see things travelling faster than light?

Thanks to Prof. Geraint Lewis for input on earlier drafts of this video.

The expanding universe is a complicated place. During inflation the universe expanded faster than light, but that’s something that actually happens all the time, it’s happening right now. This doesn’t violate Einstein’s theory of relativity since nothing is moving through space faster than light, it’s just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they aren’t. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere - it’s limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it.

via Veritasium.

Carla Laemmle c. 1920’s - (October 20th, 1909 - June 12th, 2014)  R.I.P.

The beautiful niece of producer Carl Laemmle, who made her (uncredited) film debut in The Phantom Of The Opera (1925) as a ballet dancer.  Her book entitled “Growing Up With Monsters” details her times at Universal studios from 1921 to 1937, has a foreword by Ray Bradbury, and is full of wonderful anecdotes, illustrations and photographs which document the era.  Hers is the first voice heard in “Dracula” 1931), in an uncredited role as a bespectaled passenger in the coach which is carrying Renfield to Dracula’s castle.  May she rest in peace, and I hope someone write a book about this lovely lady, who lived to the age of 104, and truly was there at the beginning of Hollywood’s Golden Age.

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