New Radio Telescope is World's Largest

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Discussion Overview

The discussion centers around the newly completed world's largest radio telescope, focusing on its specifications, particularly its size and aperture area. Participants explore the implications of its dimensions and engage in calculations related to its aperture.

Discussion Character

  • Technical explanation, Mathematical reasoning

Main Points Raised

  • Some participants highlight the telescope's size, noting it is 500 meters across and has a significant aperture area.
  • One participant initially claims the aperture area is 785,000 m2, but later corrects this to 196,350 m2 after realizing a mistake in using the diameter instead of the radius for calculations.
  • Participants engage in mathematical reasoning to calculate the aperture area using the formula A = πr2.

Areas of Agreement / Disagreement

There is no consensus on the correct aperture area initially presented, as one participant corrects another's claim, leading to a clarification but not a resolution of the initial confusion.

Contextual Notes

The discussion reveals a dependency on the correct interpretation of the telescope's dimensions, specifically the distinction between diameter and radius in calculations, which remains unresolved in terms of initial claims.

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At 500 meters across, it's got 785,000 m2 worth of aperture... that's a lot of dish!
 
Drakkith said:
At 500 meters across, it's got 785,000 m2 worth of aperture... that's a lot of dish!
Actually it's 196350 m2.
A = ##\pi##r2
Still a lot of dish!
 
websterling said:
Actually it's 196350 m2.
A = ##\pi##r2
Still a lot of dish!

Whoops, I used 500 meters as the radius when it's actually the diameter.
 

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