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						<h1 itemprop="headline">Studenterkollokvium - Signe Rolighed Thorsen: Lysets hvisken</h1>
						
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														Monday 14  November 2016,
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														&nbsp;at 14:15 -  15:00
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									<h3>Lysets hvisken</h3>
<h3>Signe Rolighed Thorsen </h3>
<p>Vejleder: Karsten Riisager
</p>
<p><em>14/11 2016 kl. 14:15<br>Fysisk Auditorium</em>
</p>
<p>I Skt. Pauls Katedral i London kan man i det såkaldte ‘Whispering gallery’ opleve et ejendommeligt akustisk fænomen. Hvis man hvisker en hemmelig besked tæt ved væggen i dette cirkulære galleri, vil beskeden kravle langs væggen og kunne høres tydeligt helt ovre på den anden side.
</p>
<p>Fysikken bag dette akustiske fænomen kan beskrives ud fra simpel bølgelære og finder derfor også anvendelse inden for andre grene af fysikken. Inden for optikken kan disse ‘hviskende’ bølger f.eks. bruges til at lave ultrasensitive biosensorer, der kan detektere partikler ned til virusstørrelse.</p>
								
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