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Cloaking device
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<p>A cloaking device is a hypothetical or fictional <a href="/facts/Stealth_technology/j3pG6jVK">stealth technology</a> that can cause objects, such as <a href="/facts/Spacecraft/YQqQaUw0">spaceships</a> or individuals, to be partially or wholly <a href="/facts/Invisibility/yW8zGvKm">invisible</a> to parts of the <a href="/facts/Electromagnetic_spectrum/24LARvFY">electromagnetic (EM) spectrum</a>. Fictional cloaking devices have been used as <a href="/facts/Plot_device/RkNc0shX">plot devices</a> in various media for many years. </p><p>Developments in scientific research show that real-world cloaking devices can obscure objects from at least one <a href="/facts/Wavelength/kcJU0ymz">wavelength</a> of EM emissions. Scientists already use artificial materials called <a href="/facts/Metamaterial/3DeLU6ME">metamaterials</a> to bend light around an object. However, over the entire spectrum, a cloaked object scatters more than an uncloaked object. </p>