Lectec | Everyday Science 🗽
Region: US
Monday 02 February 2026 18:04:11 GMT
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Formanden Karls :
so you're telling me, I could in theory, learn how to read QR codes without having to scan them??
2026-02-04 07:27:00
3543
Mess :
Crazy to think that we will run out of QR codes within the next 3 years 😔
2026-02-04 02:46:37
22
AA12 :
we built this from sticks and rocks btw
2026-02-03 21:59:41
2972
jonni :
so i can read a qr code to avoid a rickroll?
2026-02-04 08:45:44
560
Qserto [2.2KW] dt2 pro :
Don't scan it, trust me
2026-02-03 19:51:56
128
Bonbon.BBR1155633 :
OK, if you’re curious, what the QR code scans of the intro just to let you know it leads to a Rick and roll
2026-09-23 18:36:09
0
︎Jay ♛ :
Technically, you could know which site it directs you to without scanning the QR code.
2026-02-04 02:24:48
17
Ameda_Ami :
But how does the phone know when one number ends and another begins? After all isnt it only a string of ones and zeroes without any cut in between?
2026-02-06 22:59:22
2
wimachi1 :
bro just explained nothing
2026-02-17 23:12:28
1
pelimieli :
What are the limits of qr codes? How long can the url be? Also does the size matter if the dimensions are the same? For example couls someone make a 100x100m code and would it work if looked at from far enough away?
2026-02-02 20:34:03
191
〽️𝙖𝙩𝙩𝙑𝙛𝙤𝙪𝙧_ :
Dont scan the qr code on the paper you will regret it
2026-02-06 10:15:15
4
Malte ☭🚩 :
Why did I Scan it..
2026-02-03 21:24:47
25
eddan :
why do they need 3 corner squares and not 1
2026-02-03 18:29:39
2
Steve :
Can you also explain the redundancy system that works even if the code is partially covered?
2026-02-05 11:39:04
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bruno_azerty :
not 100%, there's also a arithmetic sequence for fault correction. test it, get a qr code draw some extra black dots and it still works 😁😁😁
2026-02-03 23:27:02
9
noodle :
the qr code in the video is a rickroll btw
2026-02-04 21:25:54
14
Iman :
What happens if a part is missing?
2026-02-16 22:19:22
1
Sparky⚡ :
wat if I have 34.com
2026-03-15 06:07:24
0
Batman :
What if the link is really long or short?
2026-02-08 02:20:35
3
Martha 🫶 :
But if the url is really short, how can the whole square be filled?
2026-02-03 22:15:47
2
JanoramaJan :
If you put a logo in the middle, or the code is damaged, where does it put the redundant data? If I'm correct, it can survive up to 30% damage depending on the amount of data it holds 🤔
2026-02-05 11:11:15
4
Bron Breakkfast :
but how does it still work even when it's partially covered
2026-02-04 06:10:34
0
A Bussy So Sloppy 🍑💦 :
and they even have data redundancy that lets it work even if it’s missing parts of the code
2026-02-05 05:07:33
0
Phil Bradley :
How would that work for a really long url string?
2026-02-04 15:47:35
1
J E R O N I M O ✅️ :
I've seen many types of QR. big ones more complicated 100 times more squares. also simpler ones
2026-02-17 18:07:17
0
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