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2. Fresnel rhomb - Wikipedia

   en.wikipedia.org/wiki/Fresnel_rhomb

   A Fresnel rhomb is an optical prism that introduces a 90° phase difference between two perpendicular components of polarization, by means of two total internal reflections. If the incident beam is linearly polarized at 45° to the plane of incidence and reflection, the emerging beam is circularly polarized, and vice versa.

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   Fraud alerts are free and last 90 days or seven years, depending on which type of alert you choose. To reach the three nationwide credit bureaus, just visit their website or give one of them a ...

4. Top 15 financial scams targeting older Americans — and what ...

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   The FBI Internet Crime Complaint Center (IC3) received more than 101,000 reports of scams and fraud against people ages 60 and older in 2023, causing seniors to lose over $3.4 billion. And those ...

5. Fresnel lens - Wikipedia

   en.wikipedia.org/wiki/Fresnel_lens

   A Fresnel lens ( / ˈfreɪnɛl, - nəl / FRAY-nel, -⁠nəl; / ˈfrɛnɛl, - əl / FREN-el, -⁠əl; or / freɪˈnɛl / fray-NEL[ 1]) is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections.

6. Augustin-Jean Fresnel - Wikipedia

   en.wikipedia.org/wiki/Augustin-Jean_Fresnel

   Augustin-Jean Fresnel. Augustin-Jean Fresnel[ Note 1] (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton 's corpuscular theory, from the late 1830s [ 3] until the end of the 19th century. He is ...

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8. Experimental treatment pushed by ALS patients gets day ... - AOL

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   The Food and Drug Administration meets this week to consider approval of an experimental treatment for Lou Gehrig’s disease, the culmination of a yearslong lobbying effort by patients with the ...

9. Fresnel equations - Wikipedia

   en.wikipedia.org/wiki/Fresnel_equations

   Fresnel equations. Partial transmission and reflection of a pulse travelling from a low to a high refractive index medium. At near-grazing incidence, media interfaces appear mirror-like especially due to reflection of the s polarization, despite being poor reflectors at normal incidence. Polarized sunglasses block the s polarization, greatly ...