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The Universe Is, Like, Seriously Huge

Stuff in Space Is Far Away – but How Do We Know?

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Video duration
00:32:46
Language
English
Abstract
Astronomers struggle to accurately measure distances in the vastness of the known universe. Get an insight into the sophisticated techniques and dirty tricks of today's astrophysics and cosmology. No physics background required, featuring lots of pretty space pictures.

On Earth, distances are commonly given in meters and kilometers, and can be measured comfortably with measuring sticks, odometers or optical instruments. But how does that work in space, where machines take years to arrive at other bodies, and distant stars are utterly out of reach?
From precise calculations to daring guesstimates, many different techniques and approaches are combined to form what's called the "cosmic distance ladder", giving more or less reasonable estimates of the distances between planets, stars and galaxies.
Climb the distance ladder and get to know our place in Space from kilometers to Astronomical Units and light years, all the way to gigaparsecs and the reaches of the known universe.

Talk ID
7861
Event:
33c3
Day
3
Room
Saal 1
Start
11:30 p.m.
Duration
00:30:00
Track
Space
Type of
lecture
Speaker
Michael Büker
Michael Büker
Talk Slug & media link
33c3-7861-the_universe_is_like_seriously_huge

Talk & Speaker speed statistics

Very rough underestimation:
160.9 wpm
861.4 spm
While speaker(s) speak(s):
183.0 wpm
979.1 spm
183.0 wpm
979.1 spm
100.0% Checking done100.0%
0.0% Syncing done0.0%
0.0% Transcribing done0.0%
0.0% Nothing done yet0.0%
  

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Talk & Speaker speed statistics with word clouds

Whole talk:
160.9 wpm
861.4 spm
galaxiesgalaxystarslightuniverseearthmeasureideastardistancespacestuffskycalleddistancesanglegoodsun1yearsbasicallysortexactlystandardtimeastronomicalbrightnessvenuscouplepicturesaalwaitunittalklargeplanetgrouparcsecondbrightexpandingredbunchmichaelsystembilliontelescopesmovingsmallfindwork
While speakers speak:
183.0 wpm
979.1 spm
galaxiesstarsgalaxyearthlightstarmeasuredistanceuniverseideaspacecalledstuffskyangledistancesgoodbasicallyyearssunsortcouplevenusastronomicalstandardbrightnesslargeexactlytimeunit1waitsaalarcsecondbunchbrightgroupmovingpictureplanetsmallsystemworktalktelescopesbilliongroupsredsuperbit
Michael Büker:
183.0 wpm
979.1 spm
galaxiesstarsgalaxyearthlightstardistancemeasureideauniversespacecalledstuffskyanglegooddistancesbasicallysortyearssunstandardbrightnesscouplevenusastronomicalbunchlargetimegroupbrightwaitexactlyunit1saalarcsecondtalkpicturegroupsredbillionsupermovingworksmallplanetsystemtelescopescepheids