Collection of Science Jokes P2

[DennisN]

And now something cheerful:

Two more:

 

[mfb]

And now something cheerful

All the stars visible to the naked eye should still be around, most of them are closer than 1000 light years and will stay around for tens of millions of year or more. We are only unsure about 1 or maybe 2 of them.

 

[waternohitter]

 

[Keith_McClary]

 

[DennisN]

Translated from Swedish:

"The first soccer player has now been vaccinated"

 

[kuruman]

 

[fresh_42]

 

[Frigus]

Don't drink water during studying because my teacher was saying on addition of water concentration decreases.

 

[mfb]

Physicist used April 1 for joke arXiv uploads.

The Swapland - tons of good jokes and references, mainly particle physics but also going into astronomy, philosophy, general science topics and more.
Pandemic dark matter - what if dark matter is infectious?
The Swampland Conjecture Bound Conjecture - Conjecture - we will "soon" run out of space to make more conjectures
Science Spoofs, Physics Pranks and Astronomical Antics - a review of jokes or similar things.
The Existential Threat of Future Exoplanet Discoveries - what if we extrapolate exoplanet numbers?

More:
https://arxiv.org/abs/2103.16737
https://arxiv.org/abs/2103.16866
https://arxiv.org/abs/2103.16575

CERN proposes “space elevator” accelerator

 

[BillTre]

 

[kuruman]

An oldie but goodie

 

[BillTre]

 

[BillTre]

 

[DrClaude]

 

[fresh_42]

 

[etotheipi]

 

[mfb]

Take your age, add three, then subtract three. That's your age.

In JavaScript it's your age plus 0.000000000001567.
Or 10 times your age, if you take your age as string.

var a="123"
var b=a+3
var c=b-3
document.write(c)

--> 1230

 

[pinball1970]

I am afraid for the calendar..

It's days are numbered.

 

[Ibix]

In JavaScript it's your age plus 0.000000000001567.
Or 10 times your age, if you take your age as string.

var a="123"
var b=a+3
var c=b-3
document.write(c)

--> 1230

So + is defined for strings so 3 is cast to string and b gets the value "1233", but - isn't defined for strings so b gets cast to integer and c is 1230? That's nasty...

 

[phinds]

I am afraid for the calendar..

It's days are numbered.

You hear about the guy who got fired from the calendar factory? He took a day off.

 

[fresh_42]

You hear about the guy who got fired from the calendar factory? He took a day off.

McKinsey was hired by the manufacturer. They found out, that costs could be reduced by a factor 1/364 if all calendar pages are printed with "Today".

 

[fresh_42]

Employees have been requested to use pogo sticks while on the calendar factory's ground. It was a leap year.

 

[pinball1970]

So + is defined for strings so 3 is cast to string and b gets the value "1233", but - isn't defined for strings so b gets cast to integer and c is 1230? That's nasty...

McKinsey was hired by the manufacturer. They found out, that costs could be reduced by a factor 1/364 if all calendar pages are printed with "Today".

I may take these jokes to the homework helper section, 'Explain why these are funny.'

 

[fresh_42]

I may take these jokes to the homework helper section, 'Explain why these are funny.'

 

[kuruman]

View attachment 281677

I have one of these electronic calendars. If you hit the → key, it says "Tomorrow" and if you hit the ← key, it says "Yesterday".

 

[mfb]

So + is defined for strings so 3 is cast to string and b gets the value "1233", but - isn't defined for strings so b gets cast to integer and c is 1230? That's nasty...

Yes. JavaScript is full of these odd features.
string=('b'+'a'+ + 'a' + 'a').toLowerCase() produces "banana".
'b'+'a' is regular string concatenation. The next term is " +'a' ", so JS tries to convert 'a' to an integer which produces NaN. That can be converted to a string ("NaN"), so it can be concatenated. Add the final "a" to get "baNaNa", and toLowerCase obfuscates the process a bit.

!null is true. So is null==false? No, it is not. Both null==false and null==true evaluate to false.
Exactly the same for undefined.
But what you can do: undefined==null is true.
NaN == NaN is false.

!null+""+ +'a' produces the string "trueNaN".

 

[Ibix]

JavaScript is full of these odd features.

I've used Javascript a few times and was aware that its type conversion was... interesting, but I hadn't realized quite how interesting.

 

[DrGreg]

This reminds me of the time I saw a price ticket on a supermarket shelf which told me that the price of a product was 95p and the price per 100g was NaNp.

 

[kuruman]

This reminds me of the time I saw a price ticket on a supermarket shelf which told me that the price of a product was 95p and the price per 100g was NaNp.

Which, of course, implies that 95 = NaN in SI.

 

[DrGreg]

Which, of course, implies that 95 = NaN in SI.

Or that the object for sale was a photon.