endless tangent screw sextant

简明释义

无限正切螺丝型六分仪

英英释义

例句

1.The sailor adjusted the endless tangent screw sextant to get a precise reading of the stars.

水手调整了无尽切线螺丝六分仪以获取星星的精确读数。

2.He carefully calibrated the endless tangent screw sextant before setting sail.

他在出航前仔细校准了无尽切线螺丝六分仪。

3.The accuracy of the endless tangent screw sextant is essential for long-distance voyages.

对于长途航行来说，无尽切线螺丝六分仪的准确性至关重要。

4.Using an endless tangent screw sextant allows for finer adjustments when navigating at sea.

使用无尽切线螺丝六分仪可以在海上导航时进行更精细的调整。

5.An endless tangent screw sextant can be a valuable tool for amateur astronomers.

无尽切线螺丝六分仪可以成为业余天文学家的宝贵工具。

作文

The term endless tangent screw sextant refers to a specialized navigational instrument that has played a crucial role in maritime exploration and astronomy. This device combines the features of a sextant, which is used for measuring angles between celestial objects and the horizon, with an endless tangent screw mechanism that allows for precise adjustments. The invention of the sextant revolutionized navigation by enabling sailors to determine their latitude and longitude with remarkable accuracy. However, the addition of the endless tangent screw made this tool even more effective, as it provided a means to make fine adjustments without losing the initial settings. Understanding the significance of the endless tangent screw sextant requires a look back at the history of navigation. Before the advent of such instruments, sailors relied on less accurate methods, such as dead reckoning, which could lead to significant errors in determining one’s position at sea. The sextant, developed in the 18th century, allowed navigators to measure the angle of celestial bodies above the horizon. By comparing these measurements with known positions of stars and planets, sailors could calculate their position on Earth with unprecedented precision.The endless tangent screw sextant enhances this capability through its innovative design. The endless tangent screw mechanism allows the user to make minute adjustments to the angle measurement easily. This is particularly important when trying to align the instrument with a distant star or the sun, as even the slightest error can lead to significant discrepancies in navigation. The endless nature of the screw means that it can be turned continuously without the need to reset it, allowing for smoother and more efficient adjustments.In practical terms, using an endless tangent screw sextant involves several steps. First, the navigator must identify a celestial body to measure. Once the target is established, the sextant is positioned so that the horizon and the celestial body are in view. The navigator then uses the endless tangent screw to adjust the angle until the celestial body appears to touch the horizon line in the instrument’s sight. This careful alignment is critical for obtaining an accurate measurement, which can then be used in conjunction with nautical charts to determine the ship's position.The importance of the endless tangent screw sextant extends beyond mere navigation; it also represents a significant advancement in scientific instrumentation. The principles behind its operation have influenced the design of various modern devices used in fields such as astronomy, aviation, and even robotics. Understanding how to operate such an instrument not only provides insight into historical navigation techniques but also fosters an appreciation for the ingenuity of early scientists and engineers.In conclusion, the endless tangent screw sextant is more than just a navigational tool; it is a symbol of human ingenuity and the quest for knowledge. Its ability to provide accurate measurements has enabled countless explorers to traverse the world's oceans safely. As we continue to explore our planet and beyond, understanding and appreciating the tools that have brought us this far is essential. The legacy of the endless tangent screw sextant lives on in modern navigation and science, reminding us of the importance of precision and innovation in our pursuit of discovery.

短语无尽切线螺钉六分仪指的是一种特殊的导航仪器，在海洋探索和天文学中发挥了至关重要的作用。该设备结合了六分仪的特点，六分仪用于测量天体与地平线之间的角度，以及无尽切线螺钉机制，后者允许进行精确的调整。六分仪的发明彻底改变了航海，通过使水手能够以惊人的准确性确定他们的纬度和经度。然而，无尽切线螺钉的加入使这一工具更加有效，因为它提供了一种在不失去初始设置的情况下进行微调的方法。理解无尽切线螺钉六分仪的重要性需要回顾导航的历史。在这种仪器出现之前，水手依赖于不太准确的方法，如推算航行，这可能导致在海上确定位置时出现重大错误。18世纪发展起来的六分仪使导航员能够测量天体在地平线上方的角度。通过将这些测量与已知的星星和行星的位置进行比较，水手能够以前所未有的精确度计算他们在地球上的位置。无尽切线螺钉六分仪通过其创新设计增强了这一能力。无尽切线螺钉机制使用户能够轻松进行微调。这一点在试图将仪器与遥远的星星或太阳对齐时尤为重要，因为即使是最轻微的误差也会导致导航中的重大差异。螺钉的无尽性质意味着它可以持续旋转而无需重置，从而实现更平滑、更高效的调整。在实际操作中，使用无尽切线螺钉六分仪涉及几个步骤。首先，导航员必须识别要测量的天体。一旦目标确定，六分仪就被定位，以便地平线和天体在视野中可见。然后，导航员使用无尽切线螺钉调整角度，直到天体在仪器的视线中看起来与地平线接触。这种仔细的对齐对于获得准确的测量至关重要，随后可以结合航海图来确定船舶的位置。无尽切线螺钉六分仪的重要性不仅限于导航；它还代表了科学仪器的一项重大进步。其操作原理影响了现代各种设备的设计，这些设备广泛应用于天文学、航空甚至机器人技术等领域。了解如何操作这样的仪器不仅提供了对历史导航技术的见解，还培养了人们对早期科学家和工程师创造力的欣赏。总之，无尽切线螺钉六分仪不仅仅是一个导航工具；它是人类智慧和知识追求的象征。它提供准确测量的能力使无数探险者能够安全地穿越世界的海洋。随着我们继续探索我们的星球和宇宙，理解和欣赏带我们走到今天的工具至关重要。无尽切线螺钉六分仪的遗产在现代导航和科学中延续着，提醒我们在追求发现的过程中精确和创新的重要性。