Liquid which turns into a ball?

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The discussion centers on the concept of shear-thickening fluids, which dramatically increase in viscosity under applied force, behaving like solids before returning to a liquid state when the force is removed. This phenomenon falls under the study of rheology. The conversation also touches on a video that appears to showcase a magic trick involving optical effects and possibly sleight of hand, rather than a genuine scientific demonstration. Participants caution against consuming the substances shown in the video, humorously warning of potential bloating. Additionally, a link is provided to edible and biodegradable water orbs, highlighting advancements in creating consumable alternatives.
Raghav Gupta
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Is there any liquid based on viscosity and density that changes into ball.

Obviously here, the liquid cannot be water.
Other thing can be that some chemical is applied in hand( This doesn't make sense I think).
 
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To answer your question (regardless of the video), the behavior you are looking for is known as shear-thickening: when a force/pressure is applied to the substance, its viscosity can dramatically increase, thus exhibiting behaviors characteristic of a solid and not a liquid. Stop applying the force/pressure and the viscosity once again decreases, and thus it flows, like a liquid. The branch of physics that studies this odd behavior is known as rheology.

Now, as far as the video itself is concerned, this seems to be a magic trick that involves optical properties of water as well as the ball and/or sleight of hand.
 
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JoePhysics said:
Now, as far as the video itself is concerned, this seems to be a magic trick that involves optical properties of water as well as the ball and/or sleight of hand.
This.
 
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Understood. Thanks all of you.
That viscosity concepts are not being applied here. I thought initially that it would have been a different liquid.
 
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