Tetrahedral twist: chemistry puzzle and teaching device
    1.
    发明授权
    Tetrahedral twist: chemistry puzzle and teaching device 失效
    四面体扭曲:化学难题和教学装置

    公开(公告)号:US06361324B1

    公开(公告)日:2002-03-26

    申请号:US09729161

    申请日:2000-12-05

    IPC分类号: G09B2324

    CPC分类号: G09B23/24

    摘要: A twisting three dimensional puzzle apparatus for the study of chemistry and its history and based upon the Zmaczynski equilateral triangular model of the periodic table of the chemical elements. Each face of the pyramid has a series of equilateral shaped portions bearing portions of the periodic table of elements. The different segments can be rotated around in order to scramble the puzzle. Such portions can be constructed using same or similar technology that was used to design the Meffert PYRAMINX PUZZLE that is similar to the RUBIK'S CUBE design.

    摘要翻译: 用于研究化学及其历史的扭转三维拼图装置,并基于化学元素周期表的Zmaczynski等边三角形模型。 金字塔的每个面都具有一系列具有元件周期表的部分的等边形部分。 不同的部分可以旋转,以争夺拼图。 可以使用与用于设计类似于RUBIK'S CUBE设计的Meffert PYRAMINX PUZZLE的相同或相似的技术来构造这些部分。

    Methods and apparatus for demonstrating laws of physical chemistry
    2.
    发明授权
    Methods and apparatus for demonstrating laws of physical chemistry 失效
    展示物理化学规律的方法和装置

    公开(公告)号:US06769916B1

    公开(公告)日:2004-08-03

    申请号:US10259554

    申请日:2002-09-27

    IPC分类号: G09B2324

    CPC分类号: G09B23/24 G09B23/18

    摘要: This invention is intended to be used as an Educational demonstration for college level instruction. The invention allows students to visualize the phenomenon of activation energy. Rearrange the unit to demonstrate the SN2 reaction and the potential energy of a covalent bond as a function of internuclear distance. The demonstration can be used as a visual aid to enhance the students understanding of the material presented during the instructors lecture time, or the demonstration can be used directly by the student as a laboratory exercise. The student will gain important graphing skills by using this invention to plot the activation energy curve. The device is made with the most powerful ring magnets commercially available. The size and shape of the ring magnets produces the unusual effects that characterize this invention. An acrylic rod, containing a metric scale for easy measurement, aligns the magnets.

    摘要翻译: 本发明旨在用作大学阶段教学的教育示范。 本发明允许学生可视化活化能的现象。 重新排列单位以证明SN2反应和共价键的势能作为核间距离的函数。 该示范可以用作视觉辅助,以提高学生对教师演讲时间内呈现的材料的理解,或者演示可以由学生直接用作实验室练习。 通过使用本发明绘制激活能量曲线,学生将获得重要的绘图技能。 该设备由市面上最强大的环形磁铁制成。 环形磁铁的尺寸和形状产生了表征本发明的异常效果。 一个丙烯酸棒,包含一个公制刻度,便于测量,对准磁体。

    Periodic pyramid: chemistry puzzle and teaching device

    公开(公告)号:US06533585B2

    公开(公告)日:2003-03-18

    申请号:US09734602

    申请日:2000-12-13

    IPC分类号: G09B2324

    CPC分类号: G09B23/26

    摘要: A puzzle apparatus for the study of chemistry and based upon the Zmaczynski equilateral triangular model of the periodic table of the chemical elements. A pyramid shape is used as a puzzle base and it has a series of apertures that represent the positions of the elements in the periodic table. The apertures are used to hold and display rhombohedral shaped puzzle pieces that represent the elements of the periodic table. Each of the puzzle pieces has six faces, and each face is able to hold relevant information pertaining to that element and to enable the student to use the information to replace the element into its correct position in the table of elements.