What is the slide rule in aviation?
A slide rule is a circular scale that either surrounds the watch face as a bezel or is located on the inner flange. It can be rotated in either direction, allowing you to perform various calculations related to time, speed, distance, and conversions. They are a valuable aid for performing quick calculations on the fly. They were made from approximately 1880-1974. A slide rule is a way of doing complicated division or multiplication quickly by comparing positions and markings on a pair of rulers. The rulers aren’t like a normal ruler in that they are marked logarithmically. Each division is half the size of the last.
What is the slide rule?
The slide rule was a mechanical calculating device used before digital computers. It consisted of two logarithmic scales that could slide against each other, allowing quick mathematical calculations without electricity or batteries. Ultimately, the replace- ment of slide rules with calculators occurred because the slide rule was replaceable in its core functions—the most valuable things that a slide rule could do were able to be done better by a calculator.
What are 5 uses of slide rule?
Slide rules can be used for multiplication and division, squares, cubes, square roots, cubes roots, trig functions, and exponentials and logarithms. English mathematician and clergyman Reverend William Oughtred and others developed the slide rule in the 17th century based on the emerging work on logarithms by John Napier. It made calculations faster and less error-prone than evaluating on paper.
What is the 7 slide rule?
The 7×7 rule in PowerPoint implies that you should use a maximum of 7 lines per slide, with no more than 7 words in each line, and a total of 7 slides per presentation. This can be done in bullet points to simplify the slide. The 7-7-7 rule is a guideline for creating concise and impactful PowerPoint slides. It suggests limiting each slide to a maximum of 7 lines of text, with no more than 7 words per line, and using a font size no smaller than 7 points.The 5-5-5 rule of PowerPoint is a simple design principle used to keep PowerPoint presentations clean, readable, and concise. It refers to three core limitations: no more than five words per line, no more than five lines per slide, and no more than five text-heavy slides in a row.Follow the 5/5/5 rule To keep your audience from feeling overwhelmed, you should keep the text on each slide short and to the point. Some experts suggest using the 5/5/5 rule: no more than five words per line of text, five lines of text per slide, or five text-heavy slides in a row.As discussed earlier, keeping presentations clear and engaging is the goal of the 7×7 rule. This means limiting each slide to around seven lines of text (excluding the title) with each line containing roughly seven words. This helps focus the audience on the main points.With help from the 10-20-30 rule, you can make a PowerPoint presentation that’s engaging and efficient. The guidelines for this rule are as follows: No more than 10 slides. No longer than 20 minutes. No larger than 30-point font.