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#### eNtRopY

Imagine, if you will, a thin spherical shell filled with a substance that can be made a superfluid with the flip of a switch. We fill the volume of the inner shell with lead. We place this system on a spring scale.

Now, according to recent theory, superfluids may in fact block gravitational waves. So, if we flip the switch on, so that the superfluid is

In fact, this ability to

eNtRopY

Now, according to recent theory, superfluids may in fact block gravitational waves. So, if we flip the switch on, so that the superfluid is

*on*, we should immediately notice a drop in the measured weight of our system.In fact, this ability to

*turn off*gravity may actually help us measure the characteristics of gravitational waves.eNtRopY

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