Taking it to the field: the authentic integration of mathematics and technology in inquiry-based science instruction
Taking it to the field: the authentic integration of mathematics and technology in inquiry-based science instruction
复制标题
将其运用到实践中：在基于探究的科学教学中数学与技术的真正融合
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Kathleen S. Davis
中科院分区：
文献类型：
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作者：
David A. Heflich;J. K. Dixon;Kathleen S. Davis
一种与钓竿和钓线一起使用的信号装置，只要钩上有钩，就会发出信号，提供对钓绳或钓竿的拉力。在一个实施例中，提供了两件铰链框架，其可以作为标准被强制放入地面。有一个管状容器，可以将钓鱼杆插入其中。该插座铰接在框架上，并通过可调节的弹簧装置与其相对。框架上安装有一个按钮，插座可以靠在该按钮上，以对抗弹簧的力。该按钮连接到电池和信号装置，该信号装置可以是小灯或喇叭。当钓竿插入插座，钓线有拉力时，插座将顶住弹簧的力旋转，并关闭按钮以发出信号。
A type of signaling device for use with a fishing pole and line, sounds a signal whenever there is a catch on the hook, which provides a pull on the fishing cord or on the fishing pole. In one embodiment a two-piece hinged frame is provided which can be forced into the ground as a standard. There is a tubular receptacle into which the fishing pole can be inserted. This receptacle is hinged to the frame and is opposed by an adjustable spring means. There is a push button mounted on the frame against which the receptacle can be pressed, against the force of the spring. This push button connects to a battery and signal means which can be a small light or horn. When the fishing pole is inserted in the socket and there is a pull on the fishing line, the receptacle will be rotated against the force of the spring and close the push button to sound the signal.