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  2. Apple Pencil - Wikipedia

    en.wikipedia.org/wiki/Apple_Pencil

    The first-generation Apple Pencil is compatible with iPad models released since 2018 that have a Lightning connector, including the first- and second-generation iPad Pro models, third-generation iPad Air, fifth-generation iPad Mini, sixth-generation 9.7-inch iPad, and the seventh, eighth, and ninth-generation 10.2-inch iPad models.

  3. Apple Pencil Pro - Wikipedia

    en.wikipedia.org/wiki/Apple_Pencil_Pro

    The Apple Pencil Pro is a wireless stylus pen designed and developed by Apple for the use with supported iPad tablets. [1] [2] The Apple Pencil Pro was announced alongside the iPad Pro (7th generation) and iPad Air (6th generation) on May 7, 2024. It connects and communicates wirelessly via Bluetooth.

  4. PerkinElmer Launches New Chemical Structure Drawing ... - AOL

    www.aol.com/2013/06/04/perkinelmer-launches-new...

    PerkinElmer Launches New Chemical Structure Drawing & Visualization Apps for iPad ® ChemDraw ® and Chem3D for iPad ® empower scientists and students to collaborate outside of the laboratory and ...

  5. iPad Air 2 - Wikipedia

    en.wikipedia.org/wiki/IPad_Air_2

    The first-generation iPad Pro replaced the iPad Air 2 as the flagship iPad model, with the 9.7 inch version releasing March 31, 2016, and the Air 2 being relegated as the mid-range iPad model. The iPad Air 2 was discontinued on March 21, 2017, as was the iPad Mini 2, alongside the introduction of the iPad (5th generation), which replaced the ...

  6. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Each bond consists of a pair of electrons, so if t is the total number of electrons to be placed and n is the number of single bonds just drawn, t−2n electrons remain to be placed. These are temporarily drawn as dots, one per electron, to a maximum of eight per atom (two in the case of hydrogen), minus two for each bond.

  7. Group-contribution method - Wikipedia

    en.wikipedia.org/wiki/Group-contribution_method

    The simplest form of a group-contribution method is the determination of a component property by summing up the group contributions : [] = +.This simple form assumes that the property (normal boiling point in the example) is strictly linearly dependent on the number of groups, and additionally no interaction between groups and molecules are assumed.

  8. iPadOS 18 - Wikipedia

    en.wikipedia.org/wiki/IPadOS_18

    The 7th generation iPad is the only supported iPad without Apple Neural Engine, while the 3rd generation iPad Air is the only supported iPad with a 10.5-inch display. The new Apple Intelligence functions require iPads with an A17 Pro SoC, or M1 SoC or later, which are only available on the iPad Pro (5th generation and later), iPad Air (5th ...

  9. Mechanically interlocked molecular architectures - Wikipedia

    en.wikipedia.org/wiki/Mechanically_interlocked...

    On the molecular level, the interlocked molecules cannot be separated without the breaking of the covalent bonds that comprise the conjoined molecules; this is referred to as a mechanical bond. Examples of mechanically interlocked molecular architectures include catenanes , rotaxanes , molecular knots , and molecular Borromean rings .