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2. Gamma-ray burst - Wikipedia

   en.wikipedia.org/wiki/Gamma-ray_burst

   These account for about 30% of gamma-ray bursts, but until 2005, no afterglow had been successfully detected from any short event and little was known about their origins. [67] Since then, several dozen short gamma-ray burst afterglows have been detected and localized, several of which are associated with regions of little or no star formation ...

3. Luxottica - Wikipedia

   en.wikipedia.org/wiki/Luxottica

   Luxottica. Luxottica Group S.p.A. is an Italian eyewear multinational corporation headquartered in Milan. As a vertically integrated company, Luxottica designs, manufactures, distributes, and retails its eyewear brands through its own subsidiaries. It is the largest eyewear company in the world. [5][6] It is, since October 2018, a subsidiary of ...

4. Coupon collector's problem - Wikipedia

   en.wikipedia.org/wiki/Coupon_collector's_problem

   Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...

5. International reactions to the Israel–Hamas war - Wikipedia

   en.wikipedia.org/wiki/International_reactions_to...

   On 7 October 2023, a large escalation of the Gaza–Israel conflict began with a coordinated offensive by multiple Palestinian militant groups against Israel.A number of countries, including many of Israel's Western allies, such as the United States and a number of European countries, condemned the attacks by Hamas, expressed solidarity for Israel and stated that Israel has a right to defend ...

6. Abortion law in the United States by state - Wikipedia

   en.wikipedia.org/wiki/Abortion_law_in_the_United...

   In the aftermath of the Dobbs ruling, state legislation and court rulings determine most aspects of abortion access in the United States. The following sections outline the current status of abortion law in the various states and territories; references to weeks refer to the number of weeks since the pregnant individual's last menstrual period, or LMP, which is typically used as a measure of ...

7. Contrast (vision) - Wikipedia

   en.wikipedia.org/wiki/Contrast_(vision)

   Contrast (vision) Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) visible against a background of different luminance or color. The human visual system is more sensitive to contrast than to absolute luminance; thus, we can perceive the world similarly despite significant ...