DIY Invisible Ink!

😂😂😂

awesome

Did you know you can make invisible ink using sperm? Yeah, a hell of a lot easier, but I guess that bit of info didn't make it into your curriculum...

Could you not just put the lemon juice in the highlighter after opening the ink resovoir

to do cheat in exam 😮 its amezing

Did you know you can make invisible ink by only use lemon? Heat the paper to make it appear.

The ink is called fluorescein and you can buy it online and you get a whole lot more than this. It's a red powder that turns green when wet. It glows under a blacklight and is the same dye that's in your cars coolant if it's green.

I need it for my invisible pen

Aasa pen se likho ke Pata bhi Cale 😂😂😂😂😂😂😂😂😂😂😂😂😂😂he bagawan

Are we not gonna talk about hpw good his Boo was

Its not working
😡

thanks for this video! this will really work for like bendy stuff! thanks!

Nicolas Cage has entered the chat

Ok, but say something about sodium-corbonet. You just ignored this important material

damn Bill Nye has naethin on this guy

thanks,fine

Wow

It's like a...
✨GLOW IN THE DARK INK✨

Looked like pee ngl

Pretty cool. But this might be toxic to touch so wear gloves

Soo....umm.....anyone else understand what he's saying? 😵 💫 🥴

Hahahaha...us kids made invisible ink with lemon juice in 1970, show us something new. 😅

Or cat pee ir is it dog pee

I'm sure esther from orphan didn't work so hard to make the drawings with invisible pen😂

Now what happens if you drink it? Would it make you green?

It's not working

how the color exist from 🤔🤣nothin

Where can someone find sodium carbonate? 🤯

Cool

And pee

How about disappearing reappearing ink ?
~ Roger Rabbit

WoW 🤩
Sir its cool 😎
In its work

"C A R E F U L L Y"

e obrigatório usar a luz negra

Yeah cause we all have sodium carbonate laying around right?

Do you think a normal regular guy can do this😑😑😑😑

Jes let me just grab the sodium carbonate I have in my pantry rq

Respect pens else you will get your karma

Is this a reversible reaction?

You can also jus draw on the paper with the lemon juice let it dry and then put it under heat to reveal the message on it

Can it be seen in dark area?

my grandma is asking me where all her lemons went

Forbidden lemonade..

I learned this from bill nye

Photoacid

No journal?

You can just use Lemon water and then heat it over a flame to make the text appear

You can do it with piss too

It was cruel when you smashed the bottom of the marker with a hammer hard