Amazing Physics Toys/Gadgets 7
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- Äas pĆidĂĄn 20. 05. 2022
- Hi Everyone :)
Welcome back!
I get asked often: "Where did you get all this stuff?" My goal is to share the real magic of science and physics- and to this end I will update here (and in my store) suggestions on where to get some of these toys, kinetic art pieces, and scientific curiosities for yourself.
Purchasing items from the links on these pages will help support my IG page of science and wonder.
Buy physicsfun toys on : bit.ly/2MOjFET (Official website đșđž)
physicsfun toys on amazon :
amzn.to/36RRxt0
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@physicsfun
This video contains :
đđ» Squaring Circles: from one particular point of view these wireframe sculptures looks like a circles/squares, from another itâs a square/circle!
đđ» Undial Sundial: modern design of an ancient timekeeping device where a slanted stick (the gnomon) casts a shadow to indicate the time (this one designed for 30-40 degrees latitude). This novel design has no dial underneath, instead the hours are laser etched into clear acrylic such that the time appears projected within the cast shadow. 10 AM to 3:00 PM of a sunny day in Fresno are shown here in time-lapse. Note the movement of the shadow cast by the sun as the Earth turns underneath during this five hour period. Perfect for a windowsill that gets noonday sun!
đđ» Franklin's Bells
đđ» Electrostatic Levitation: hand held Van de Graaf generator charges and repels a cylinder of thin aluminized Mylar.
đđ» Electrostatic Motor: induced charge supplied by a hand held Van de Graaf generator powers this simple motor.
đđ» Equatorial Bulge Demo: two springy circular rings flatten along their axis of rotation in proportion to the rate of spin in this classic teaching demonstration. This device demonstrates that centripetal accelerations applied to an elastic sphere will cause it to bulge at the equator- becoming an oblate spheroid. Isaac Newton predicted that given the Earthâs rotation, the radius to the equator would be larger than the radius to the North Pole by 1 part in 230. He was correct! (although overestimated slightly- swipe for description) Modern measurements indicate 1 part in 294.7. Question: At what location on Earth could you stand on land and be furtherest from its center? Mt Everest is a good guess, but the correct answer is the top of Mt Chimborazo in Ecuador. Although Everest is higher above sea level, the equatorial bulge puts the top of Chimborazo a 2.2 km further into space from the center of the Earth.
đđ» Mini Acoustic Levitator: small pieces of styrofoam become trapped between areas of higher pressure induced by high frequency sound waves. Ultrasonic transducers placed at the top and bottom are basically speakers that emit sound waves at a frequency of 43,000 Hz, which corresponds to a wavelength of 8mm for dry air.
đđ» Kinetic Balance Sculpture: two ribbons of aluminum balance on a third in equilibrium with gravity- but free to rotate about pivot points above each systemâs center of mass. A vintage find from 1974 by artist John W. Anderson.
đđ» Balance Stacking Sculpture: a series of torques in unstable equilibrium complete this Calder-esque structure.
đđ» Dither Image Encryption: three images hidden in random dither patterns are revealed by precisely overlaying and aligning any two patterns in the generated set. Amazingly each pattern holds two encrypted images where b+c=âŁ, a+b=âŠ, and c+a=â„.
đđ» Tumble Rings: the links in this chain are connected in a special way such that the top ring appears to tumble to the bottom- a compelling illusion!
đđ» Van de Graaff Generator: this miniature electrostatic generator can create potentials of more than 50,000 volts allowing sparks to jump a few centimeters through dry air. Similar physics to the sparks created when shoes scuff on carpet, a moving rubber dielectric belt carries electrons away from the top sphere leaving it positive charged- as can be seen by the electrostatic repulsion of some Mylar strands. A small battery powered 3V motor drives the belt via the bottom pulley in this unit that costs less than $10 US.
đđ» Handheld Van de Graaf Generator
đđ» Pendumonium: stick man chaotic pendulum with 4 degrees of freedom.
đđ» Digital Sundial
đđ» PHYSICS BRAIN TEASER
Background music by : CZcams Audio Library
1) New Day - Patrick Patrikios
2) Tempos Vari - Freedom Trail Studio
3) Icelandic Arpeggios - DivKid
4) Bay Street Billionaires - Squadda B
5) Interstellar Mood - Nico Staf
6) Can't Sleep - Eveningland
7) Vital Whales - Unicorn Heads - VÄda a technologie
Any school/college student here? What is your favourite subject?
Where are you all from đ ?
Anyone from USA đșđž?
I am a college student
Chemistry
India
France . đ
Not related to you question, but where do you get your music from for the videos?
Pakistan ... Science ...
Collage student from India. Math
Challenge awnser: because Tungsten has a higher density than magnesium. 1kg of tungsten will take less volume than 1 kg of magnesium
That's my thoughts exactly. Got me thinking if it was a trick question because of how easy the answer was.
If the tungsten is half the size on every axis, then itâs 8x the density as shown in the demo. I didnât look up the actual SG of each but it looks pretty close to 8x.
Just like black holes, which are hugely smaller in size compared to the star it formed from, but billions of times denser.
OK, I looked up the SG of both materials. Magnesium has an SG of 1.74 while tungsten has 19.25. At equal mass, the tungsten block will be about 1/11 the volume.
Right, you gave the right answer
Density. One pound of lead takes much less space than one pound of aluminum. By my estimation if those two pieces were the same size the tungsten would weigh 7 times what the magnesium does.
Isn't the challenge about different densities ? I remember doing that thing in physics class where we had to calculate their densities using their size and weight to find their densities. For everyone that finished it before the bell rang, they were given metal samples and had to identify the metals using a document and their previous excercise. And I'm pretty proud of myself since I was the first one to do them both in my class before the class ended.
Long story short, some metals have higher density than others, meaning some are heavier per cm3
Yes! This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
@@physicsfun Wow! Do you like that?
@@physicsfun is the tungsten block also 11 times smaller?
@@krigadiga1546 if density = 1:11 then volume = 11:1, assuming cube, volume~r^3, the cube root of 11 is a bit over 2 so the slidelength is roughly twice as big.
2:20
bats be like: ayo đ€šđ€šđ
I finally understand the esoteric meaning of Squaring the Circle. It is to achieve mental androgyny.
Ćwietne doĆwiadczenia, bardzo efektowne i ciekawe
CieszÄ siÄ, ĆŒe Ci siÄ podobaĆo.
Nauka to sposĂłb na ĆŒycie. Nauka to perspektywa. Nauka to proces, ktĂłry prowadzi nas od zamÄtu do zrozumienia w sposĂłb precyzyjny, przewidywalny i niezawodny - transformacja dla tych, ktĂłrzy majÄ szczÄĆcie jej doĆwiadczyÄ, to znaczy wzmacniajÄ ca i emocjonalna.
@@physicsfun I hope you get to show a microscope-based barometer that shows your elevation compared to Mount Everest!
The tungsten is heavier because it bears the weight of what it did, it can never forget.
A geometric elemental configuration burdened with backstory, wolframite's child sorrows eternal
I am 80yr old from Siliguri India.
Where can i buy these ?
The Ultra-Sonic 'levitation' principle is truly fascinating.
correct me if I'm wrong, but aren't the sundials useless? like it has to be facing in a certain direction to work based of the suns angle right? so what if I live in northern europe and the angle which the sun sets at changes within a week, wouldn't I have to change the placement of the sundial also? making it more of an extra job instead of a problem solver.
That pic with the sloped looking lines was trippy af. I could stare at that for hours on mushrooms.
And for the equal block weight of the two different sized metal blocks, I'm not a physicist, but my common sense tells me the smaller block is obviously denser. It's like making two squares out of six pieces of paper the exact same then crumbling one up into a ball. One will be much smaller than the other but will weigh the same.
The principal of the device at 2:00 used to be used in the governors on some old stationery engines.
Hence the term "balls out"
Yes, it did.
The chain with the link that rolls to the bottom, is really cool. I like that one đ€đ
Glad you enjoyed
los polos se retraen y se repelen, en la contradicciĂłn, la masa se comporta como en el aire un pedazo de papel con la resistencia a la atracciĂłn cuando esta su ĂĄrea expuesta al mĂĄximo y la resistencia del aire , bueno por que pesa mas. la atracciĂłn no ofrece la misma resistencia una vez comprimido. ? y otra pregunta eso es lo que mas se puede comprimir esta sustancia. materia.
Magnesium Density: 1.738 g/cmÂł vs. Tungsten density : 19.25 g/cm3
You are intelligent! This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Wolfram, also known as Tungsten - "Tung sten" - heavy rock, in Swedish. So yes, a small cube will be heavy while a large magnesium cube will be comparatively lightweight. My Japanese 13.3" laptop computer is 730g/25.7oz (even with a 10 hour battery), mostly made from a magnesium alloy which is why it's so lightweight.
Great demonstration of centripetal force 1:46
Glad you liked it
Thanks
this challenge is definitely one of the easier ones :) Tungsten is a much denser metal than magnesium. And such, holds more mass in a smaller cube than magnesium.
Yes!
50|50 Cube: custom 1 Newton SI unit version. This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
@@physicsfun you are making a big confusing story out of an inanely simple question!
No numbers or names of materials are required. It's a question of principle.
Better you delete the question and the replies and try to forget this blooper.
@@ittaiklein8541 cant agree here .... i guess i must have heared/seen/read somewhere and remembered, i thought it might be tensidy....
i was rather glad to find this solution in the comments, because i was not sure.
and i AM sure, there are folks who didnt know at all and learned something new ... something to stick in their brain till they need it :P
@@martinastaniek - Hi Martina. perhaps you could help me with a technical issue.
Here it is:
please tell me how to find & display your very first comment, to which *I* have made my first response. Only after reading the whole chain of discourse, I shall be able to continue this discussion.
Those sundials are amazing!
Glad you liked it.
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
That clock, is a reinvention and slight ly difrent one at that, of the worlds first (working) clock
I have always loved †Physics.
Glad you liked it
â€ïžâ€ïžâ€ïž
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
Since tungsten has a much higher density than magnesium it occupies much less volume
If you flicker you eyelids rapidly the blue lines become parallel again. That is one impressive illusion.
Answer :- difference in density
Density of tungsten is more than magnesium
Density being inversly proportional to volume , increase in density causes decrease in size . Thus tungsten is smaller than Mg
I suspect it has something to do with the atomic weights of tungsten vs magnesium.
1:17 now make it for a high altitude balloon. It repels itself, so no stopping at the upper reaches of the atmosphere.
Physics is â€
Music 4/5
Great channel đ„ â€
Science is â€ïž
Music 4/5
Yes - great episode, Mr. Bean was a welcomed addition to the video, love the random pop culture reference. Keep up the great educational content!
Glad â€ïžâ€ïž
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
Challenge : Magnesium has a density of 1.783 g/cm3
tungsten is 19.28, maiking it asmost 11 times denser
To reach equilibrium on the scale, you then need an 11 times bigger chunk of magniesium compared to tungsten
You are intelligent
Yes! The volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Dankeschön, intressant, danke herzlich fĂŒr ihre BemĂŒhungen.
Freut mich das zu hören.
Die Physik beschreibt die wahre Magie des Universums.
So when I close my eyes till everything is almost blurry. I can see @7:01 image lines straight. Crazy! try!
At 00:21 I remember this little beat from a toy keyboard i used to play with lol, it was my favorite one hahaha
Thanks for sharing
Iâm someone what loves physics and I would say †physics 4 life
Chellange answer..... May be due to different molecular density of each element (mole concept) according to me
LIFE
When u r full u have choice to choose ur favourite ,
When u r empty u want anything.
Their position in the periodic table pretty much gives up the properties (density) on why magnesium is larger than tungsten.
Yes! This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Respected sir,
My intrest is in separation of plastic, I want to what type of rod you are holding to make plastic to blow.
Does it work on only shrink flim plastic or some other types of plastic also.
We use magnet to Separate iron, .. can use this rod to separate plastic,
Does it work on wet plastic
Jay shree ram
I have watched vedio, normally people put fan below converbelt to blow the plastic wrappers.
My suggestions is you must work on minute time periods of blowing of plastic and speed of converbelt.
First let fan air .... or ...your machine flote the plastic wrappers, ......after that put the fan .....from right or left side to blow the floating plastic wrappers,..... while moving on converbelt.
Must bring blance between speed at different levels.
Speed of fan below, speed of converbelt, speed of floating plastic and speed of right and left fan to move floating plastic from top of converbelt.
In some places people don't have converbelt facilities , so make fix stand model machine for them to operate batch per batch.
Jay shree ram.
Perfect :))) I can't do it :))
Very different density.
You are intelligent
1/7th the volume Tg equal mass Mg
One cubic centimeters of tungsten has a molar mass seven times the same cubic centimeter of magnesium
This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
At 7:11 if ya watch flat on the screen the line are parallel too... crazy
5:16 this invention was inspired by boris johnson's haircut
Challenge at the end was too easy: Tungsten is significantly denser than magnesium, meaning the same mass is condensed in a much smaller volume.
Your weighing machine is tilted đđ
Clock that never runs out!
*/time set night*
Clock: well... i think i'm useless now
In India Arvind Gupta created such scientific toys from recycled materials. This is also good as useful objects
I have seen some capillary action go right through the roof top.
Physics is fun!
Tungsten probably has larger density according to my very limited knowledge of atomic densities that is admittedly scattered all over the place.
This is awesome
Glad you enjoyed â€ïžâ€ïž
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
Is it possible to buy a Digital Sundial?
Please read video description for details
@@physicsfun I wasn't complete - Digital Sundials International seems to have been closed for a few years. Are there other sources for their classic looking desktop digital sundials?
I love these things.
Glad
Physics is the best. Still so many unanswered questions. Just when you think you know, you get surprised again. đ
Yes! Physics describes the real magic of the universe.
What I love about science is that as you learn, you donât really get answers. You just get better questions.
Answer: tungsten is much more dense and has a higher atomic weight. Thus, it takes a higher volume of magnesium to match a piece of tungsten of the same mass.
You are intelligent.
This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Physics are â€
Physics is â€
I've seen "Back to School Mr. Bean" . I think it's one of the best.
The whole of science is nothing more than a refinement of everyday thinking.â€ïžâ€ïž
Physics is amazing!
Physics is the best. Still so many unanswered questions. Just when you think you know, you get surprised again.
The acrylic clock is cool... but I live in FL and I actually wonder, would a super cheap battery clock actually outlive this no battery clock lol. It could theoretically last forever... but if it degrades in UV it could be done in as little as 6 months here in the extreme UV of a Florida summer. If you own anything plastic and leave it outside here in Florida it'll be brittle and crumble in months.
Gosh darn UV index spoiling perpetual horology
the more important question is, why isn't the magnesium ON FIRE?
How we buy this product sir
Please read video description for details
7:52
Tungsten block is denser.
Tungsten has similar density to gold and is used to make fake gold ingots. Magnesium has much lower density and is used in products where light weight and strength are required.
You are intelligent.
50|50 Cube: This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Where can I buy these products ?
Please read video description for details.
6:00 isnât it the Nikola Tesla bonine ?
The Sun Dial is a very old simple idea, unfortunately it doesn't work too well in the modern era due to Daylight Saving. Do you have any idea, how many manhours it takes every year, twice a year, to re-arrange the Stones at Stonehenge ! ;)
đ€Ł
Because tungsten is more dense then magnesium. You would need more magnesium to make it the same weight of the tungsten. I never thought I would put that knowledge to use until now
Yes! 50|50 Cube: custom 1 Newton SI unit version. This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
đžđđž Physics
I'm from Syria đžđŸand Germany đ©đȘ and live in MalaysiađČđŸ
Mass, density... What would you call it in English?!
@@alsadekalkhayer7007 - Density - die Dichte ist die Ursache.
@@LigH_de aha, jetzt weiĂ ich es wieder đđ»
I love physics
Physics is the best. Still so many unanswered questions. Just when you think you know, you get surprised again.
"Runs down".
I love that undial. I wonder how well it works in Singapore, 1 degree north of the equator.
Glad you liked it â€ïž
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
I, too, love it. Iâd like to purchase one for camping.
"tallest mountain at the equator" because of equatorial bulge of the Earth, isn't much of a superlative, since the same applies to the "highest sea level at the equator"
similarly:
the arctic ocean's open sea level is the lowest sea level at the north pole depression, well below bulging equatorial sea level
and:
the Antarctica has the lowest continental mountain peaks, possibly below bulging equatorial sea level
plus, the deepest sea bottom in the arctic ocean could be well below the Marianas Trench in the Pacific Ocean
(I never bothered to check; because such stats don't mean that much, knowing Earth has such equatorial bulge and polar depression that skews all "superlative" distance stats)
example:
21 km difference in polar versus equatorial sea level reference EXCEEDS deepest oceanic trenches and tallest mountains, which neither exceeds 9.2 km anywhere they are located
Tungsten is nearly equal to golds density: Gold (Au) is 19.320 g/cm^3 and Tungsten (W) is 19.250 g/cm^3
You are intelligent.
This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Plot twist: the clock sets your house on fire.
its larger because its less dense. The atomic structure is more spaced out in the larger cube. so if the same amount of matter is in both cubes equalling the same weight then the one with the larger spaces in between atoms will be a larger overall cube. at least thats how i understand it. i could be way off.
Yes! This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Magnesium has a lower density therefore it requires higher volume to weigh the same mass as that of the tungsten
The density in Tungsten is greater, if I recall correctly?
Yes! The volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
If I want to buy.. Where can I get them
Please read video description for details.
It's because Tungsten is denser than Magnesuim
Ingenious!
Glad to hear that â€ïž
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
I am a student studying in 9 th class in India.. I really respect those people who love physics because i can't understand even a simple thing in it... Whenever i open my physics book i am like đ”đ„±đ„Ž
Take a look at
en.m.wikipedia.org/wiki/The_Feynman_Lectures_on_Physics
tungsten has higher density than magnesium.
Grammar problem! How can a clock "run out"?? I think you mean "run down", as in the battery power is used up.
yeah bro.... no joke
PHYSICS IS ACTUALLY MY â€
Physics is â€ïž
Physics describes the real magic of the universeâ€ïžâ€ïžâ€ïž
I made the tumbling rings out of paper while bored on a trip. Also a riddle: what's heavier, a kilogramme of tungsten, or a kilogramme of magnesium?
That's cool !
50|50 Cube: custom 1 Newton SI unit version. This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Cute riddle... BUT a kg is a kg... a unit of mass, which would carry the same weight whether it was feathers, fur, tungsten, titanium, or freshly boiled rice noodles.
Technically, weight is the function of work output by the force of gravity between two masses, generally consisting of the entire mass of planet earth, and the mass of whatever you're "weighing"... Statically, we just call it "weight", kinetically we call it "HEADS UP!" ..or "OW!" ;o)
Challenge quiz: Even though tungsten is known to be one of the toughest metals, racing bike frames and other lightweight components are made from magnesium alloy due to the much lower weight. It is easy to see that a tungsten cube would be much heavier than a magnesium cube of the same size. So obviously the magnesium cube must be much larger to be as heavy as the tungsten cube.
Apart from that, the magnesium cube shown has a big chunk missing where the tungsten cube was placed, so it must have even greater edge length than a completely solid magnesium cube to compensate for the missing mass.
its no a missing mass just have different mold
@@cpch23online2 I don't understand. What do you mean 'just have different mold'? And how is there no mass missing if you can clearly see there is cavity in the magnesium cube where the tungsten cube fits in? If it didn't have that cavity it would have more mass, no matter if machined or molded, wouldn't it?
@@A._Meroy that i can use number ( i cant im not math guy :V ) to make a trigonometric firgure to explain why is the missing part not missing.
lets say that you have 1k of clay and you decide to make a cube with that missing part but will be still the same 1kg.
i dont know if i explain myself xD
@@cpch23online2 A 1kg cube of clay that has a hole inside is bigger on the outside than a 1kg cube that doesn't. You don't need much math for that, only some good intuition. There is no way they can both be the exact same size and weight at the same time. But that's exactly what I meant by 'missing mass'.
The density of Tungsten is higher than Magnesium.
Yes!
50|50 Cube: custom 1 Newton SI unit version. This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3
Not sure if anyone said this, but on the previous quiz, if you look at your screen from the side then the lines look horizontal and parallel. The more perpendicular to the screen you are, the more effective the illusion.
Yes! Skye Blue Café Wall Illusion: the horizontal blue lines appear to be sloped but they are actually parallel, as verified by sighting a straight line from the edge of the image. This visual illusion is related to the level of contrast between sharp boundaries, and if the boundaries are blurred (here with a plate of frosted glass) the illusion is broken and the lines appear parallel. Note that even after we verify the lines are parallel, our perception still misleads- a reminder that we need science to transcend the limits of our senses and cognition. This award winning illusion was created by artist Victoria Skye and is featured here with permission.
They are NOT equal masses, they ARE equal weight with varying densities
no sun . no clock
Where can I get these ?
Please read video description for details
Very good. I like all of the experiments.
Glad you liked it
Science is not meant to cure us of mystery, but to reinvent and reinvigorate it.
True thing
Scale tell always things weight
NOT its #quality đ
My Japanese 13.3" laptop computer is 730g/25.7oz (even with a 10 hour battery), mostly made from a magnesium alloy which is why it's so lightweight.
Because the density of the tungsten is higher than the density of the magnesium.
dĂŒnya deneyini birde içi dolu cisimle yapın olur mu? içi boĆ iki levha ĂŒstelik uçları sabit olmayan cisimlerle benzerlik olmaz
wow thank you so nice !
You are so kind â€ïž
The whole of science is nothing more than a refinement of everyday thinking.
Ans: Tungsten's Density is more. Means in a unit area number of protons and electrons are more in tungsten đđ