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  2. Lambert's problem - Wikipedia

    en.wikipedia.org/wiki/Lambert's_problem

    In celestial mechanics, Lambert's problem is concerned with the determination of an orbit from two position vectors and the time of flight, posed in the 18th century by Johann Heinrich Lambert and formally solved with mathematical proof by Joseph-Louis Lagrange. It has important applications in the areas of rendezvous, targeting, guidance, and ...

  3. Porkchop plot - Wikipedia

    en.wikipedia.org/wiki/Porkchop_plot

    The orbital elements of the solution, where the fixed values are the departure date, the arrival date, and the length of the flight, were first solved mathematically in 1761 by Johann Heinrich Lambert, and the equation is generally known as Lambert's problem (or theorem). [1]

  4. Lambert W function - Wikipedia

    en.wikipedia.org/wiki/Lambert_W_function

    The function is named after Johann Lambert, who considered a related problem in 1758. Building on Lambert's work, Leonhard Euler described the W function per se in 1783. [citation needed] For each integer k there is one branch, denoted by W k (z), which is a complex-valued function of one complex argument. W 0 is known as the principal branch.

  5. Johann Heinrich Lambert - Wikipedia

    en.wikipedia.org/wiki/Johann_Heinrich_Lambert

    Johann Heinrich Lambert (German: [ˈlambɛɐ̯t]; French: Jean-Henri Lambert; 26 or 28 August 1728 – 25 September 1777) was a polymath from the Republic of Mulhouse, generally identified as either Swiss or French, who made important contributions to the subjects of mathematics, physics (particularly optics), philosophy, astronomy and map projections.

  6. Whoopi Goldberg Peaces Out During Miranda Lambert Debate on ...

    www.aol.com/entertainment/whoopi-goldberg-peaces...

    Whoopi Goldberg, Miranda Lambert Shutterstock(2) Whoopi Goldberg had enough while her The View cohosts argued over Miranda Lambert scolding her concertgoers about taking a selfie. During the Hot ...

  7. Lambertian reflectance - Wikipedia

    en.wikipedia.org/wiki/Lambertian_reflectance

    Diagram of Lambertian diffuse reflection. The black arrow shows incident radiance, and the red arrows show the reflected radiant intensity in each direction. When viewed from various angles, the reflected radiant intensity and the apparent area of the surface both vary with the cosine of the viewing angle, so the reflected radiance (intensity per unit area) is the same from all viewing angles.

  8. Miranda Lambert and Brendan McLoughlin Are 'Still Trying' to ...

    www.aol.com/entertainment/miranda-lambert...

    Miranda Lambert and Brendan McLoughlin: A Timeline of Their Whirlwind Romance Read article “Miranda and Brendan are still going strong,” the insider shares, noting that McLoughlin, 30, is ...

  9. Proof that π is irrational - Wikipedia

    en.wikipedia.org/wiki/Proof_that_π_is_irrational

    Another proof, which is a simplification of Lambert's proof, is due to Miklós Laczkovich. Many of these are proofs by contradiction . In 1882, Ferdinand von Lindemann proved that π {\displaystyle \pi } is not just irrational, but transcendental as well.