## What is the difference between 1 24 and 1 25 scale?

For display purposes, 1/24th and 1/25th scale are close enough for horseshoes, as they say. The difference in size is about 4 percent. You won’t be able to swap engine or chassis parts between the two scales, though — one won’t fit with the other.

**What is the meaning hospital pass?**

“Hospital pass” is a term used in various football codes, including Australian rules football, American football, rugby league, and rugby union, to describe a pass that subjects the recipient to heavy contact, usually unavoidable, from an opposing player — the expression implying that the recipient of the pass could …

### How do you add a slide rule?

Usually it is not practical to perform single addition or subtraction with slide rule….u+v, u-v (C, D)

- Place left index of C scale over v on D scale.
- Read the number (u/v — be careful with digit count) from scale C over u on scale D.
- Add 1 to it (u/v+1) and move cursor there.
- Read u+v from D scale under cursor.

**Who invented slide rule in 1620?**

Edmund Gunter

#### What does it mean if a scale is 1 96?

A model with an Imperial scale of 1:96 or a Metric scale of 1:100 will be very close to being the same size. The same can be said for an Imperial scale of 1:48 and a metric scale of 1:50.

**What is an architect’s ruler called?**

An architect’s scale is a specialized ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and Multi-view orthographic projections.

## What does a scale of 1 25 mean?

Well, 1:25 means that 1 ‘unit’ on the plan is 25 ‘units’ in real life, so 1cm = 25cm, 1ft=25ft etc.

**How do you multiply on a slide rule?**

To multiply multiple numbers:

- Perform the multiplication method for the first two factors as previous described.
- 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.

### What does a 1/20 scale mean?

What does a 1:20 scale mean. The same goes for a 1:20 scale, which when used, represents a subject at a size 20 times smaller than its real word dimensions. For example a drawing drawn to a 1:20 scale would require a lot more intricacies than a 1:50 and 1:100 drawing.

**Who invented the first slide rule?**

William Oughtred

#### When were slide rules used?

19th century

**How do you use the Sterling slide rule?**

On the Sterling slide rule, the A scale is on the upper part of the body; the B, CI, and C scales are on the slide; and the D and K scales are on the lower part of the body. The slide may be removed and reversed to give access to the S, L, and T scales on the back of the slide.