How do you create a slide rule?

How do you create a slide rule?

How to make a slide rule (or log-log or semilog graph paper)

  1. Take an ordinary ruler, and put decimal points before the numbers marking the inches.
  2. To position the major (black) divisions on the logarithmic scale, calculate the base-10 logarithm of each integer from 2 to 9 and plot the integer at that place on the ruler.

Are slide rules still made?

Though they’re no longer produced, the company still stocks around 1,200 or so and occasionally gets an order for some. Why would anyone still want to buy a slide rule, when inexpensive calculators are so readily available? According to Haase, slide rules are better suited to some functions than are calculators.

How did a slide rule work?

A slide rule works by adding or subtracting the numerical exponents of numbers for multiplication or division, respectively. Thus, numbers to be multiplied or divided are converted to their logarithmic values and their exponents are added or subtracted.

How accurate is a slide rule?

A slide rule is only as accurate as its manufacture and calibration and your ability to set it and read values. In practice, you get between two and three significant figures from slide rule calculations, and these errors compound as you use intermediate values in subsequent calculations.

What replaced the slide rule?

The demise of the slide rule is caused by the advent of the cheap, fast and versatile electronic pocket calculator. The special status which the owner used to derive from his slide rule, was happily replaced by the equally special status of the flashy HP-35.

Are old slide rules worth anything?

The rarest slide rules are 19th Century hand-engraved instruments such as Palmers Computing Scale (a circular model), first published in 1843, or the cylindrical ‘Thacher’s Patent Calculating Instrument’ slide rules produced by Keuffel and Esser Co in the 1880s. These can run close to $1,000 in good condition.

What was the best slide rule?

From top to bottom: Faber-Castell 2/83N Novo-Duplex: Size 38 x 7 cm, 30 scales, plastic. This model is regarded by some as one of the finest slide rules ever made. Its combination of size, build, sophistication of scales offered and attractive use of colour gives a slide rule that impresses!

How do you multiply slide rules?

To multiply multiple numbers:

  1. Perform the multiplication method for the first two factors as previous described.
  2. Then move the C index to the previous product to start the next multiplication. The hairline or cursor was handy for keeping a pointer on the previous product while moving the slide.

When was the slide rule invented?

1620s

How do you read a slide rule?

Reading the Scales. The scales on a slide rule are logarithmic, in that the spacing between divisions (the lines on the scale) become closer together as the value increases. This is why the slide rule is able to do multiplication and division rather than addition and subtraction.

What is the purpose of a slide rule?

To serve as a mechanical analog computer

What does slide rule mean?

: a manual device used for calculation that consists in its simple form of a ruler and a movable middle piece which are graduated with similar logarithmic scales.

How old is the slide rule?

Amédée Mannheim, an officer of the French artillery, invented in 1859 what may be considered the first of the modern slide rules. This rule had scales on one face only.

What slide means?

A slide is a single page of a presentation. Collectively, a group of slides may be known as a slide deck. A slide show is an exposition of a series of slides or images in an electronic device or in a projection screen.

How do you use the circular slide rule?

The order does not matter. To multiply two numbers, align one of the numbers to the arrow at 1. Find the other number on the same ring as the arrow and read across to find the result. As expected, 6 x 35 gives the same result as 35 x 6.

What is a circular slide rule?

Slide Rules Circular Slide Rules Slide rules that are round offer the length of a 10″ rectangular slide rule in a pocket-sized (roughly 3.6″) format, since the scales are on the circumference of circles.

Who invented slide rules?

William Oughtred

What slide rule did Apollo astronauts use?

NASA chose a 5-inch, metal rule, model “N600-ES,” manufactured by the Pickett Company for their use. It was a model that was popular among engineers, scientists and students at the time. No modifications were needed for use in space. This rule was used by the crew of Apollo 13, in April 1970.

What does a slide rule look like?

It looks like a ruler, but has a slide-y part in the middle. You can use it to quickly multiply and divide large numbers, and if you are a slide rule whiz you can even do exponents, roots, and trigonometry.

What does logarithm mean?

A logarithm is the power to which a number must be raised in order to get some other number (see Section 3 of this Math Review for more about exponents). For example, the base ten logarithm of 100 is 2, because ten raised to the power of two is 100: log 100 = 2. because. 102 = 100.

What is another word for slide?

Slide Synonyms – WordHippo Thesaurus….What is another word for slide?

slither wriggle
slip glide
sweep skid
glissade undulate
move coast

What is an example of slide?

The definition of a slide is a smooth movement or a surface designed for a smooth movement. An example of a slide is when a window is pushed up to let in the breeze. An example of a slide is a piece of playground equipment that children ride down.

What are the types of slide views?

  • Microsoft PowerPoint has three main views: normal view, slide sorter view, and slide show view.
  • Normal View is the main editing view, which is used to write and design a presentation.
  • Slide Sorter View is an exclusive view of the slides in thumbnail form.

Which key is used to delete a slide?

Release the Ctrl key. Then right-click the selection and choose Delete Slide.

In which tab you will get new slide option?

Click on the New Slide button located on the Home tab in the Slides group. The new slide should appear below the selected slide. If you want to add a new slide between two, select the first of the two slides and click New Slide. Notice the New Slide button contains a New Slide button arrow.

What is a slide master?

A slide master is the top slide in a hierarchy of slides that stores information about the theme and slide layouts of a presentation, including the background, color, fonts, effects, placeholder sizes, and positioning. Click to select the master slide, then click Master Layout on the Slide Master tab.

How do I access the master slide in PowerPoint?

On the View tab, click Slide Master. In Slide Master View, the slide master appears at the top of the thumbnail pane with related layouts beneath it. Click to select the master slide, and then click Master Layout on the Slide Master tab.

How do I make a master slide editable?

in the toolbar, then choose Edit Master Slides. Double-click the name of the master slide in the slide navigator and type a new name. Modify the slide however you like by adding text, images, shapes, placeholders, or other objects.