omg ya ikr

It's fun to do it but it's harmful to the cat because it is unable to catch its pray being the laser

I'm literally rn

IKR

Ha

I get jelly of anyone who jams with Diana, she's fun.

Yeah, "berry close".

Strawberries aren't berries though. They are achenes. 😉

It's like telling a tomato to "catch up"

Also, perhaps some "Lemon-aid" Was a nice one.

Are you a chemist?

Chemistry...yuck😝

Playfer everything is a subset of physics. Which is just an application of calculus, which is a subset of math, which is a form of logic. So really, everything is logic

@@JaysonT1 you're kidding right

​@@GabrielRaskind Everything is logic, you say. Perhaps. But then how do you explain Twitter? 😁

*chase

Or it could have been peed out by Abraham Lincoln, or Alexander the Great! However, if you live in a city it's more likely it was peed out by one of your neighbors fairly recently...

Same here. LOVE LOVE science and including physics girl.

Me too. cheers.

@@roichir7699 cheers for physics!

Enjoy your dinosaur pee as you breathe in Mozart or Genghis Khan farts!

Or it’s a nice pun, you decide

That's not berry nice. They look like they're already grasping at their last straw being on the show.

Nope. That's just Dianna, we would be worried if she didn't do that sort of stuff.

I laughed out loud at that, it was great.

Welp.

Think that was the Blue Planet videos.

I wouldn't have noticed this if i wouldn't have seen your comment.

I did the same thing....didn't even see the layer until she said something.

Lasers don't really have a spectrum. It's only one wavelength. Unless you are reflecting a visible laser off a YAG crystal, you are only going to reflect light that is the wavelength of the laser.

@@Natolxs depends on the laser. Some lasers are basically color shifted. The produced light is one wavelength, then it passes through some filter and becomes another wavelength. If something is wrong with the filter (it's misaligned or something like that), some of the original light comes through and depending on the specifics that original source light might be much more dangerous to you than the intended target light. And by the nature of these things, that source light is usually invisible, so you don't even notice when it shines right into your eyes.

Sorry, but your part about invisible parts of the spectrum is a bit of nonsence.. As Natolx (again partially wrong) said - the lasers usually donot emit anything except of the wavelength they have (no one "possessing" a spectrum. It is just a picture and it exists anyway. Photo of something really tiny is still a photo. A spectrum of a perfect laser is a delta-function). they usually dont have infrared emission. Lasers are dangerous because of low divergence. And your eye, being hit with the low-diverging beam, will focus a collimated laser beam to a really tiny spot on your retina, that even with relatively small power of laserpointer will lead to a high power Density on a retina (same as lens and sun). And can damage the retina. What green (and only it) laser pointer (532nm) has - is 800nm diode, that pumps NdYAG crystall, creating 1064nm laser emission and than a second harmonic crystal that makes 532nm (green) out of 1064nm (infrared). usually 1064nm and 800nm radiations are "locked"inside by reflective mirrors. But these mirrors are also NdYAG resonator mirrors, so if they are damaged - the laser will most probably not work at all.. just 800nm emission can come out, but it is not collimated, so not so dangerous. Hope you understand something :) But the point - no mid-high power lasers without protective glasses is a good one! The blue laser pointer shown here is way too strong, definitely belongs to class 3b and should not be used without glasses at all..

A common way to get green and blue/violet lasers is frequency doubling starting with an IR laser. Not all green and violet lasers have good IR block filters in place, and the IR that bleeds through can actually exceed the 5mW limit. So yes, real world lasers are not actually single frequency devices....

@@rbrbrts a 405 laser like she is using has a mass produced LED available because of Blu-ray technology, so it's almost certainly an LED

sodium ACETATE , C2H3NaO2, and is a SALT. A Salt = acid + base; in this case it's when she mixes vinegar(acetic acid) + baking soda(sodium bicarbonate). the complete reaction is CH3COOH + NaHCO3 = CH3COONa + CO2 + H2O. (The CO2 is the bubbling/fizzing gas part. ) Interesting to note sodium acetate is a "basic" salt, that turns water slightly basic when dissolved in it.

@@redace001 *Sir/Ma'am This Is A McDonalds Drive Thru*

xfish2002jx just to be pedantic would the boat dip ever so slightly as the drop hit the deck then return to a status quo ? Due to the extra force it would gather falling.

@@ferretfez6976 it would also rise slightly while the droplet is in the air. Really, because of friction and water tension, the difference from the droplets falling would be completely negligible.

I would say it slightly moves up and down. The mass overall is not changing, but the wwater droplets have momentum that gets transferred to the boat.

@@juliaf_ a truck carrying a load of pigeons. the pigeons are all sitting asleep on shelves when the truck driver sounds his horn and all the pigeons take flight in the back of the truck. is the truck lighter now as the birds are airborn?

@@chrisyoung5929 It's not really the same question.. The water drop does transfer momentum while falling and hitting the boat. It needs acceleration or it could not change it's velocity and it obviously has a mass. If you drop a really heavy stone inside your boat or jump up and down yourself it is kinda the same thing and obviously the boat does wobble. However, after a while the boat would sit in the water just as before.

wouldn't the boat move (if ice cube was above the waterline of the body of water) since you would technically be displacing less water (since there is some in the boat now)? or am I just way overanalyzing definitions?

@@Dragonis431 Yes.

The boat will also rise a tiny amount while the drop is in free-fall towards the deck.

not quite correct i think as she mentioned, the water drops on to the boat, which means the center of gravity of the boat and you goes down this would have the effect of lifting the boat up by a slight amount

@@Dragonis431 It doesn't matter where the ice cube is, in your hand or on the deck. As long as the weight of those water molecules is being supported by the boat, it won't change the displacement. That's what the hull is for -- to keep the weight inside the boat still inside the boat, and keep the displaced water outside. You will only change the displacement if something crosses the hull one way or the other. Changing the height of those water molecules inside the boat will affect (in an insignificant way in this case) how the boat rocks in response to waves by moving the center of mass by that microscopic amount. Changing where it is horizontally inside the boat will change the angle that the boat rests compared to the surface of the water, but not the total displacement.

Also known by people who learned on old oscilloscopes.

@@nirfz @elmo2you kzfaq.info/get/bejne/kM-clqiSzLynlH0.html and kzfaq.info/get/bejne/qNqCaZZeysm5fqM.html

@Alessandro Tagliafierro He's prbly a DJ, just look up DJ show supplies on Amazon.

Do a google search for lasermame if you want to see how to use to play old arcade games on you wall

looked on your channel. No video posted. So, I don't believe you

@@AlexFoster2291 what do videos have to do with believability?

@@AlexFoster2291 and all yo6 have is a sound bite from George Carlin ya left wingnut.

In the moment it is in the air, the boat with rise a bit. After that, the drop falls on the boat with a momentum, thus lowering the boat more than it was when it was still ice. It will bounce back and forth until friction dissipates the energy into water ans settles on the initial level.

I totally forgot about that moment of being airborne. Dammit.

I was thinking the same, especially when the laser is aimed at surfaces that reflect like glass, water, metals...

Lasers are only dangerous like that if it's strong enough. She also aims it at a refractory surface which means the reflected dots is much weaker.

@@Dragonited Agree...But if you are showing this to the world is better to show the safest way possible

It's an ordinary consumer grade laser pointer, not a laser cutter/engraver.

Especially something kids might reproduce, better to introduce safety habits early

What about the acceleration of water droplets due to gravity? Due to which the droplets will gain momentum .

@@HarshSharma-uf8jc I mean, according to Newton the impact would, in fact, rock the boat a tiny, tiny amount. But yeah, conservation of mass, the boats buoyancy would not be affected by melting ice bc the mass of H2O doesn't change, just its temperature and density.

When the drop goes into freefall, it's no longer exerting force on the boat. When it hits the deck, that force will be applied again. So there would be a slight oscillation following the rate of dripping. But the effect would be too insignificant to notice under all but an extremely contrived scenario.

So now you have fifty chins?

@@miriamjesse1628 maybe

chintuple*

Let this be a warning to any strawberries.

Holo taco

Yeah, you always need eye protection when using lasers. It frustrates me that she doesn't even mention it.

Didn't expect you to be here Papa Flammy

"Do not look into laser with remaining eye"