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  2. Galaxy morphological classification - Wikipedia

    en.wikipedia.org/wiki/Galaxy_morphological...

    Tuning-fork-style diagram of the Hubble sequence Galaxy morphological classification is a system used by astronomers to divide galaxies into groups based on their visual appearance. There are several schemes in use by which galaxies can be classified according to their morphologies, the most famous being the Hubble sequence , devised by Edwin ...

  3. Hubble sequence - Wikipedia

    en.wikipedia.org/wiki/Hubble_sequence

    Roughly half of all spirals are also observed to have a bar-like structure, with the bar extending from the central bulge, and the arms begin at the ends of the bar. In the tuning-fork diagram, the regular spirals occupy the upper branch and are denoted by the letter S, while the lower branch contains the barred spirals, given the symbol SB.

  4. Binary decision diagram - Wikipedia

    en.wikipedia.org/wiki/Binary_decision_diagram

    In computer science, a binary decision diagram (BDD) or branching program is a data structure that is used to represent a Boolean function. On a more abstract level, BDDs can be considered as a compressed representation of sets or relations. Unlike other compressed representations, operations are performed directly on the compressed ...

  5. Dining philosophers problem - Wikipedia

    en.wikipedia.org/wiki/Dining_philosophers_problem

    Illustration of the dining philosophers problem. Each philosopher has a bowl of spaghetti and can reach two of the forks. In computer science, the dining philosophers problem is an example problem often used in concurrent algorithm design to illustrate synchronization issues and techniques for resolving them.

  6. Directed acyclic graph - Wikipedia

    en.wikipedia.org/wiki/Directed_acyclic_graph

    The same idea of using a DAG to represent a family of paths occurs in the binary decision diagram, [55] [56] a DAG-based data structure for representing binary functions. In a binary decision diagram, each non-sink vertex is labeled by the name of a binary variable, and each sink and each edge is labeled by a 0 or 1.

  7. Pioneer plaque - Wikipedia

    en.wikipedia.org/wiki/Pioneer_plaque

    The map lists the period of this pulsar in binary to much greater precision: 100000110110010110001001111000. ... The pulsar map and hydrogen atom diagram are ...

  8. Co-defendant of Young Thug stabbed in jail while awaiting ...

    www.aol.com/co-defendant-young-thug-stabbed...

    One of two remaining co-defendants in Georgia's longest-running criminal trial was stabbed in jail, his lawyer said Monday morning, as jurors resumed deliberations in the sprawling racketeering ...

  9. Binary search tree - Wikipedia

    en.wikipedia.org/wiki/Binary_search_tree

    Fig. 1: A binary search tree of size 9 and depth 3, with 8 at the root. In computer science, a binary search tree (BST), also called an ordered or sorted binary tree, is a rooted binary tree data structure with the key of each internal node being greater than all the keys in the respective node's left subtree and less than the ones in its right subtree.