How many Planck lengths are there in a parsec?

Click For Summary
The discussion revolves around a user seeking clarification on a mathematical question related to Alexa's capabilities. A link to Alexa's answer was shared, but some participants experienced issues accessing it, likely due to Google Drive's sharing settings. Suggestions included purchasing an Amazon Echo Dot to directly hear Alexa's responses, which are described as both entertaining and educational. However, some users expressed reluctance to spend money just to learn basic multiplication or division. The conversation also touched on concepts like standard form and spurious precision, with a focus on the accuracy of measurements in scientific contexts. Ultimately, the thread concluded with a reminder that the forum is not a substitute for using a calculator.
Bob Walance
Insights Author
Gold Member
Messages
82
Reaction score
55
[Mentor's note: moved to GD because this is a thread about Alexa, not parsecs or Planck lengths]

I know it's a strange question. Here is Alexa's answer:

https://drive.google.com/open?id=1hXYFT_zBnFy-N0BotiTSDL8_S6nHK3ns
 
Last edited by a moderator:
Physics news on Phys.org
Bob Walance said:
I know it's a strange question. Here is Alexa's answer:

https://drive.google.com/open?id=1hXYFT_zBnFy-N0BotiTSDL8_S6nHK3ns
I can't see the link
 
Last edited by a moderator:
Hmmm ... I'm able to see and follow my link even when I'm not logged in. I'm not sure why others can't

My math is fine and we're not allowed to upload mp3 files, so I guess this stops here.

Better yet -- spend $50 for an Amazon Echo Dot (you'll need a wifi network) and listen to Alexa's response for yourself. She's a lot fun and can be very educational.
 
phinds said:
I can't see the link
I can. I expect that this has something to do with being logged into Google Drive and/or how the sharing has been set up.
 
Hm.

"Alexa, what is standard form?"

"Alexa, what is spurious precision?"
 
Bob Walance said:
Better yet -- spend $50 for an Amazon Echo Dot (you'll need a wifi network) and listen to Alexa's response for yourself. She's a lot fun and can be very educational.
Spending $50 to learn how to multiply two numbers together doesn't seem all that appealing to me.
 
  • Like
Likes berkeman, russ_watters and Tom.G
Ibix said:
"Alexa, what is spurious precision?"
Spurious? They are both well-defined lengths...
She could have rounded, sure, but he didn't ask for approximately...
:-p
 
Ask Alexa how many electrons there are in a pint...
 
phinds said:
Spending $50 to learn how to multiply two numbers[/color] together doesn't seem all that appealing to me.
Uhm, maybe "...divide two numbers..."?
 
  • #10
I get ~1.9e+49 using google calculator and my crummy typing skills. The OP is asked to consider doing the same:
i.e, lookup both values then divide Planck length in meters (really small) into the number of meters in a parsec. Thread closed.

PF is not a preferred substitute for google calculator.
 
  • Like
Likes davenn, berkeman, russ_watters and 1 other person

Similar threads

Calculating the Planck Length
  • · Replies 3 ·
Replies
3
Views
759
Undergrad Is the Planck length the smallest measurable length?
  • · Replies 9 ·
Replies
9
Views
3K
High School Is the Speed of Light 1 Planck Length per 1 Planck Time in Vacuum?
  • · Replies 18 ·
Replies
18
Views
3K
Undergrad Could Planck Stars Explain Black Hole Bounce and Resolve Physics Paradoxes?
  • · Replies 1 ·
Replies
1
Views
3K
Does Planck's relation apply to radio waves?
  • · Replies 17 ·
Replies
17
Views
3K
Undergrad Planck's law in wavenumber vs. wavelength
  • · Replies 20 ·
Replies
20
Views
5K
Is the Planck length relative?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Validity of theoretical arguments for Unruh and Hawking radiation
  • · Replies 146 ·
5
Replies
146
Views
12K
Undergrad The new definition of kg and the mass-energy equivalence
  • · Replies 4 ·
Replies
4
Views
5K
Planck length and quantized position
  • · Replies 6 ·
Replies
6
Views
2K