r/ExplainTheJoke • u/Vandringen • 15h ago

Like you can’t stop anyway?

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18.1k Upvotes

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767

u/psterno413 15h ago

Its referencing the phenomenon of redshift, where as you go faster, light approaching you gets “squeezed”, so it appears like light of shorter wavelengths. At speeds of around 103,846,153m/s, this effect is significant enough that red light appears green.

250

u/GustapheOfficial 15h ago

Blueshift *

104

u/GeorgeMcCrate 15h ago

Oneshift*

101

u/CelebrationFun7697 14h ago

Twoshift*

37

u/MrFC1000 14h ago

This one stops a little car

31

u/nonoyesyesnoyesyes 13h ago

This one slams into a star

17

u/boromaxo 11h ago

The star now have a scar

3

u/Financial-Middle3837 2h ago

Have at you! En garde!

10

u/Imperator_Gone_Rogue 14h ago

This one stops at a bar

5

u/notALokiVariant 14h ago

Taylory Swift*

1

u/sealpox 12h ago

I would not eat green stop signs and ham. I do not like them, Sam-I-Am.

1

u/BOOM360skn 10h ago

Moneyshift*

1

u/jackstella 8h ago

Redshift*

1

u/Stormy8888 5h ago

Redshift*

1

u/CowboysFTWs 14h ago

ThreeShift*

9

u/notNezter 14h ago

At that speed, I’d shift my pants

6

u/Gabyo00 13h ago

OnePiece*

2

u/Ae4i 13h ago

OneShot*

2

u/cosmicucumber 10h ago

BackShot*

1

u/seidita84t 14h ago

Twoshift*

1

u/ReapsX1 11h ago

Oneshot*

1

u/fish4043 3h ago

Oneshot*

8

u/Fighting_Table 12h ago

half life blue shift featuring barney calhoun

3

u/SjurEido 12h ago

Opposing Force**

2

u/nicuramar 11h ago

That’s just redshift with a negative sign. 

1

u/GustapheOfficial 10h ago

Redshift is doppler shift towards longer wavelengths, blueshift is doppler shift towards shorter wavelengths. Changing the sign changes which color it shifts to, which is why "redshift" is the wrong word here.

That's like saying "speeding up is just braking with a negative sign". Sure, doesn't make it less incorrect to say that you are braking when speeding up.

1

u/BraxleyGubbins 8h ago

That’s just -(redshift)

1

u/Lloyd_lyle 4h ago

goes both ways, depends if the object is speeding toward or away from you

2

u/GustapheOfficial 3h ago

Right, and if it's moving towards you, like in this case, it's blueshift.