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  2. Exploratorium - Wikipedia

    en.wikipedia.org/wiki/Exploratorium

    The Exploratorium campus comprises 330,000 sq ft (31,000 m 2) of indoor and outdoor exhibit space and includes 1.5 acres (0.61 ha) of freely accessible public space. The exhibits are housed in and around Pier 15, which extends over 800 ft (240 m) over the Bay. [14] The Exploratorium at Pier 15 was designed by architectural firm EHDD. [15]

  3. Pi Day - Wikipedia

    en.wikipedia.org/wiki/Pi_Day

    Tau Day, also known as Two-Pi Day, [35] is observed on June 28 (6/28 in the month/day format). [36] The number 𝜏, denoted by the Greek letter tau, is the ratio of a circle's circumference to its radius; it equals 2 π, a common multiple in mathematical formulae, and approximately equals 6.28. Some have argued that 𝜏 is the clearer and ...

  4. Google Dictionary - Wikipedia

    en.wikipedia.org/wiki/Google_Dictionary

    Google Dictionary is an online dictionary service of Google that can be accessed with the "define" operator and other similar phrases [note 1] in Google Search. [2] It is also available in Google Translate and as a Google Chrome extension. The dictionary content is licensed from Oxford University Press's Oxford Languages. [3]

  5. Are US national parks free? Entry to all national parks is ...

    www.aol.com/us-national-parks-free-entry...

    Every national park in America is free to visit on a handful of days each year. Here are the dates for 2023. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...

  6. Visit America's national parks for free on these six days in 2024

    www.aol.com/news/visit-americas-national-parks...

    There's a new addition to the entrance fee-free days next year: Juneteenth, which became recognized as a federal holiday in 2021. One veteran's legacy: Free, lifetime national parks access for ...

  7. For the first time, Juneteenth is a free entry day at ... - AOL

    www.aol.com/first-time-juneteenth-free-entry...

    National park free entry days for 2024. There are four more chances to visit national parks for free this year, including Juneteenth: June 19 - Juneteenth. Aug. 4 – Great American Outdoors Day ...

  8. List of online dictionaries - Wikipedia

    en.wikipedia.org/wiki/List_of_online_dictionaries

    An online dictionary is a dictionary that is accessible via the Internet through a web browser.They can be made available in a number of ways: free, free with a paid subscription for extended or more professional content, or a paid-only service.

  9. WordReference.com - Wikipedia

    en.wikipedia.org/wiki/WordReference.com

    WordReference is an online translation dictionary for, among others, the language pairs English–French, English–Italian, English–Spanish, French–Spanish, Spanish–Portuguese and English–Portuguese. WordReference formerly had Oxford Unabridged and Concise dictionaries available for a subscription.