Describe Napier’s Bone and Slide Rule.

Describe Napier’s Bone and Slide Rule. 
by

1 Answer

Answer :

 Napier's Bone:

 It was a calculating device invented by John Napier (Scottish Mathematician) in

1614.

 It consisted of a wooden box containing rotating cylinders having digits from 0-9.

 It could multiply, divide and find square roots of numbers.

 Slide Rule:

 It was device developed by William Oughtred (English Mathematician) in 1920s.

 It was based on the idea of logarithm.

 It is used to solve problem of multiplications and divisions.

 It has 3 parts. Slide, Rule and Sliding Cursor. 
by

Related questions

A set of rods where numbers were carved and used for multiplication and division aids is known as A) Pascaline B) Napier’s Bones C) Stepped Reckoner D) Slide Rule

Description : A set of rods where numbers were carved and used for multiplication and division aids is known as A) Pascaline B) Napier’s Bones C) Stepped Reckoner D) Slide Rule

Last Answer : Answer : B

Napier’s Bones were invented in A) 1614 B) 1617 C) 1620 D) None of above

Description : Napier’s Bones were invented in A) 1614 B) 1617 C) 1620 D) None of above

Last Answer : Answer : B

Each set of Napier’s bones consisted of rods. A) 5 B) 9 C) 11 D) 13

Description : Each set of Napier’s bones consisted of rods. A) 5 B) 9 C) 11 D) 13

Last Answer : Answer : C

What is Napier’s Bones?

Description : What is Napier’s Bones?

Last Answer : Ans. John Napier created a device using rods to perform arithmetic calculations that is called Napier’s Bones.

Mathematicians and others -- can you still use a slide rule?

Description : Mathematicians and others -- can you still use a slide rule?

Last Answer : answer:We had a couple at home when I was growing up, so I learned (to satisfy my curiosity) even though they had long since been replaced by calculators by the time I got to ... skills/principles, like vernier calipers and tapes that measure diameter (not circumference) when wrapped around a tree.

Slide Rule (1822) What ?

Description : Slide Rule (1822) What ?

Last Answer : : In 1822, William Oughtred of Germany invented the circular slide rule using John Napier's method . Sliderolls were used for division , multiplication , root , logarithm and trigonometry. Before the invention of the pocket calculator it was a tool commonly used in science and engineering.

The first calculator that can perform all four arithmetic operations(Addition, Subtraction, Multiplication, Division) was known as______ (A) Pascaline (B) Slide Rule (C) Step Reckoner (D) None of the Above

Description : The first calculator that can perform all four arithmetic operations(Addition, Subtraction, Multiplication, Division) was known as______ (A) Pascaline (B) Slide Rule (C) Step Reckoner (D) None of the Above

Last Answer : (C) Step Reckoner

……………….. contains information that defines valid values that are stored in a column or data type. A) View B) Rule C) Index D) Default

Description : ……………….. contains information that defines valid values that are stored in a column or data type. A) View B) Rule C) Index D) Default

Last Answer : C) Index

The default setting for a horizontal rule is .............. A) shaded B) unshaded C) both D) none of the above

Description : The default setting for a horizontal rule is .............. A) shaded B) unshaded C) both D) none of the above

Last Answer : A) shaded

Shift-Reduce parsers perform the following : (A) Shift step that advances in the input stream by K(K>1) symbols and Reduce step that applies a completed grammar rule to some recent parse trees, joining them together as one tree with a new root symbol. (B) Shift step that advances in the input stream by one symbol and Reduce step that applies a completed grammar rule to some recent parse trees, joining them together as one tree with a new root symbol. (C) Shift step that advances in the input stream by K(K = 2) symbols and Reduce step that applies a completed grammar rule to form a single tree. (D) Shift step that does not advance in the input stream and Reduce step that applies a completed grammar rule to form a single tree.

Description : Shift-Reduce parsers perform the following : (A) Shift step that advances in the input stream by K(K>1) symbols and Reduce step that applies a completed grammar rule to some recent parse trees, ... in the input stream and Reduce step that applies a completed grammar rule to form a single tree.

Last Answer : (B) Shift step that advances in the input stream by one symbol and Reduce step that applies a completed grammar rule to some recent parse trees, joining them together as one tree with a new root symbol.

Module design is used to maximize cohesion and minimize coupling. Which of the following is the key to implement this rule? (A) Inheritance (B) Polymorphism (C) Encapsulation (D) Abstraction

Description : Module design is used to maximize cohesion and minimize coupling. Which of the following is the key to implement this rule? (A) Inheritance (B) Polymorphism (C) Encapsulation (D) Abstraction

Last Answer : (C) Encapsulation

Which one of the following is true? (A) The resolvent of two Horn clauses is not a Horn clause. (B) The resolvent of two Horn clauses is a Horn Clause. (C) If we resolve a negated goal G against a fact or rule A to get Clause C then C has positive literal and non null-goal. (D) If we resolve a negated goal G against a fact or rule A to get clause C then C has positive literal or null goal.

Description : Which one of the following is true? (A) The resolvent of two Horn clauses is not a Horn clause. (B) The resolvent of two Horn clauses is a Horn Clause. (C) If we resolve a negated goal G against a ... negated goal G against a fact or rule A to get clause C then C has positive literal or null goal. 

Last Answer : (B) The resolvent of two Horn clauses is a Horn Clause.

Which of the following is false for the programming language PROLOG? (A) A PROLOG variable can only be assigned to a value once (B) PROLOG is a Strongly Typed Language. (C) The scope of a variable in PROLOG is a single clause or rule. (D) the scope of a variable in PROLOG is a Single Query

Description : Which of the following is false for the programming language PROLOG? (A) A PROLOG variable can only be assigned to a value once (B) PROLOG is a Strongly Typed Language. (C) The scope of a variable in PROLOG is a single clause or rule. (D) the scope of a variable in PROLOG is a Single Query

Last Answer : (B) PROLOG is a Strongly Typed Language.

Describe the following types of application software.

Description : Describe the following types of application software. 

Last Answer :  Productivity Software:  They include word processing, spreadsheet and database management.  They are used to speed up daily routine tasks.  They help to work in organized and efficient ... typing tutors, spelling tutor, language learning, medical, driving test,  flight simulation etc. 

Describe the five generations of computers.

Description : Describe the five generations of computers. 

Last Answer :  First Generation Computers (1940-1956):  They used vacuum tube technology.  Vacuum tubes produce lot of heat and needs to be cooled with A.C.  Their examples were ENIAC, UNIVAC-I, IBM ...  They will be based on Artificial Intelligence.  Their examples will be robots and expert systems. 

Which of the following statements are true with reference to the way of describing XML data ? (a) XML uses DTD to describe the data (b) XML uses XSL to describe the data (c) XML uses a description node to describe the data Codes : (A) (a) only (B) (b) only (C) (a) and (b) (D) (a) and (c)

Description : Which of the following statements are true with reference to the way of describing XML data ? (a) XML uses DTD to describe the data (b) XML uses XSL to describe the data (c) XML uses a description node to describe the data Codes : (A) (a) only (B) (b) only (C) (a) and (b) (D) (a) and (c)

Last Answer : Answer: D

Which of the following statement(s) is/are correct? (1) Persistence is the term used to describe the duration of phosphorescence. (2) The control electrode is used to turn the electron beam on and off. (3) The electron gun creates a source of electrons which are focussed into a narrow beam directed at the face of CRT. (4) All of the above.

Description : Which of the following statement(s) is/are correct? (1) Persistence is the term used to describe the duration of phosphorescence. (2) The control electrode is used to turn the electron beam on and off. (3) ... which are focussed into a narrow beam directed at the face of CRT. (4) All of the above. 

Last Answer : All of the above.

I have a lot of duplicates in my photo collection, the same picture appearing in different folders, different slide shows. It's a mess. Help!

Description : I have a lot of duplicates in my photo collection, the same picture appearing in different folders, different slide shows. It's a mess. Help!

Last Answer : There certainly is software designed to find duplicate files. take your pick

What’s the most annoying thing your wife/husband does that you just let slide because you love them?

Description : What’s the most annoying thing your wife/husband does that you just let slide because you love them?

Last Answer : She cries none stop during any disagreement until I give in. It really hurts

How can I improve letting things slide?

Description : How can I improve letting things slide?

Last Answer : Just remember that ignorance is bliss.

Can his leg and life be rejuvenated or is it a downhill slide?

Description : Can his leg and life be rejuvenated or is it a downhill slide?

Last Answer : He needs to be evaluated by a doctor and/or physical therapist.

When does a player slide in lacrosse, and where does he slide to?

Description : When does a player slide in lacrosse, and where does he slide to?

Last Answer : From my daughter: A slide is generally when the other team has the ball and you usually slide when the person with the ball is entering the attack area and going to the goal to shoot. The defender will ... are behind so the defense has to take over and slide to either slow down the person down.

Ideas for the last slide of an academic PowerPoint presentation?

Description : Ideas for the last slide of an academic PowerPoint presentation?

Last Answer : I always ended my decks with a Q&A slide because I think attendees expect to have the opportunity to get additional info. I would suggest your finding a dynamic graphic to dress up that slide, or do some sort of interesting animation with the letters Q&A themselves.

How many "organized" dances do you know, such as the Electric Slide and Macarena and what do you think of them?

Description : How many "organized" dances do you know, such as the Electric Slide and Macarena and what do you think of them?

Last Answer : Never been my thing. You’re not alone, I think line dancing and the Macarena craze etc. to be rather whimsically stupid. lol

Are there any revolvers that use a slide?

Description : Are there any revolvers that use a slide?

Last Answer : All semiautomatics have a slide.

In Powerpoint, how do I get the sound I imported to play across the entire slide show?

Description : In Powerpoint, how do I get the sound I imported to play across the entire slide show?

Last Answer : answer:http://digitalunion.osu.edu/files/2009/08/016_072109_jc_ppisav.jpg Play Automatically, On Click, or Play Across Slides? This is an option for both video and audio. You are choosing whether you have to ... scalable on your slide so that you can make it as discreet or huge as you would like.

What do you think about Apple patenting the "slide to unlock" feature of its phones?

Description : What do you think about Apple patenting the "slide to unlock" feature of its phones?

Last Answer : answer:No they should not be able. This way whoever does something new can pattern it and no other company can produce similar items. Just think a bit. If the first cell was patterned by ... perform the process and get something different. Since Steve died apple took a fall and feel attacked .

Seeing pictures on a slide show?

Description : Seeing pictures on a slide show?

Last Answer : Try 10 seconds if there is no text.

Aging: downward slide towards the grave; or a climb through life's experience towards wisdom?

Description : Aging: downward slide towards the grave; or a climb through life's experience towards wisdom?

Last Answer : Having had a few moments in my life where it looked like aging might not happen, I can definitely say I prefer it to the alternative. I actually enjoy a lot of aspects about it. I'm smarter, I no ... . Since it happens anyway (if you're lucky) I'm much happier embracing it than being upset by it.

How can I create playlists on my computer for my myTouch 3G Slide?

Description : How can I create playlists on my computer for my myTouch 3G Slide?

Last Answer : answer:HA! It stinkin’ figures I’d find it right after I posted the question! I decided to Google “create playlist notepad G1” instead of “myTouch” and I found it. :P http://androidcommunity.com/forums/f41/how-do-u-make-your-playlists-work-5858/

Educators: In a disciplinary sense, what things have you decided to "let slide"?

Description : Educators: In a disciplinary sense, what things have you decided to "let slide"?

Last Answer : Ummm well, my teaching (1968-1980) was long ago and things have changed. The school had rules, and if someone was breaking the rule, I would bring it to the student's attention. How ... most coaches approach discipline differently than just a teacher. Coaches tend to be more proactive in this area.

Can I scan a slide with the HP Officejet 6310?

Description : Can I scan a slide with the HP Officejet 6310?

Last Answer : ToddAnderson , welcome to ask-public. Forgive me for being so blunt, but why don’t you just scan one and see if it works?

Is an ImageBox 3-in-1 Digital Film, Slide and Photo Converter a good thing?

Description : Is an ImageBox 3-in-1 Digital Film, Slide and Photo Converter a good thing?

Last Answer : I don't own the Imagebox, but I own a Canon Canoscan that scans slides and print photos and creates digital copies on the computer. It works fantastically. I wasn't sure it would scan old camera ... for the imagebox they don't look so good. http://reviews.costco.com/2070/11486976/reviews.htm

Can anyone recommend any good slide printing sites?

Description : Can anyone recommend any good slide printing sites?

Last Answer : Buyy a SLR that takes film. Photograph the work yourself.

Did Michael Richards have to wear special shoes on Seinfeld to slide through Jerry's doorway?

Description : Did Michael Richards have to wear special shoes on Seinfeld to slide through Jerry's doorway?

Last Answer : No. he’s a very skilled physical comedian. not so hot on the race relations, but good with physical comedy.

Would you defend yourself or let it slide?

Description : Would you defend yourself or let it slide?

Last Answer : I have a question before I answer – are you supposed to be there at a certain time, regardless of the late hours and working through the weekend? I’m not passing judgment – I was in a situation similar to this, but need an answer, first- if you don’t mind!

Has anyone seen the new power slide case for the iphone?

Description : Has anyone seen the new power slide case for the iphone?

Last Answer : looks kind of odd, but i guess now it would be on par with all the other ulgy looking smartphones

Free online slide show?

Description : Free online slide show?

Last Answer : Flickr?

What are the dimensions of the slide to unlock screen of the iPhone?

Description : What are the dimensions of the slide to unlock screen of the iPhone?

Last Answer : You might wanna look at the iPhone GUI PSD file

If sometime in the future we discovered or created a new species that is comparable in sapience to humans (for example a moogle), would humanity slide back into slavery or would we be able to avoid such a development and bestow this species full human rights?

Description : If sometime in the future we discovered or created a new species that is comparable in sapience to humans (for example a moogle), would humanity slide back into slavery or would we be able to avoid such a development and bestow this species full human rights?

Last Answer : Well, if it were a moogle, they’d probably enslave us all, and we’d lose our human rights with our humanity. But if it were a floogle, then we would remain pure of heart and pristine of soul, and bestow upon them all the perquisites and rights pertaining thereto!

Copyright law and slide scanning?

Description : Copyright law and slide scanning?

Last Answer : get the permission in writing from the copyright owner along with a disclosure of acceptable use for the slides especially if you intend to make available via the Internet.

How should I properly repair a hole in an inflatable bonzai slide?

Description : How should I properly repair a hole in an inflatable bonzai slide?

Last Answer : Sorry you have not gotten any responses. There is a family of repair products that are not too pricey and are available at marine stores that will probably be more effective than gorilla tape.

What is a dvd slide show with music on it called exactly?

Description : What is a dvd slide show with music on it called exactly?

Last Answer : answer:1. Anyone with a Mac can do that in iPhoto, then iDVD. 2. Retarded? “Arm and a leg,” “they’re” not “there.” Just sayin’. 3. In answer to your question, I just call them “DVD slideshows with music.”

Which transformation distorts the shape of an object such that the transformed shapeappears as if the object were composed of internal layers that had been caused to slide over each other? a.Rotation b.Scaling up c.Scaling down d.Shearing

Description : Which transformation distorts the shape of an object such that the transformed shapeappears as if the object were composed of internal layers that had been caused to slide over each other? a.Rotation b.Scaling up c.Scaling down d.Shearing

Last Answer : d.Shearing

The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction

Description : The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction

Last Answer : d. Limiting friction

A man wished to move a block of size 3 m x 3 m weighing 80 kg. The coefficient of friction between the block and the ground is 0.27. Which of the following methods should be used? a.Slide along the ground by pushing b.Ask for cranes c.Pull it d.Tip it over e.Lift it bodily

Description : A man wished to move a block of size 3 m x 3 m weighing 80 kg. The coefficient of friction between the block and the ground is 0.27. Which of the following methods should be used? a.Slide along the ground by pushing b.Ask for cranes c.Pull it d.Tip it over e.Lift it bodily

Last Answer : d. Tip it over

I spread open my legs, slide the face between them, and put my bridge on the face's nose. What am I? -Riddles

Description : I spread open my legs, slide the face between them, and put my bridge on the face's nose. What am I? -Riddles

Last Answer : A spectacle.

It's easy to see me,Not easy to atop me,Clouds hang around me,And people like to slide down me.What am I? -Riddles

Description : It's easy to see me,Not easy to atop me,Clouds hang around me,And people like to slide down me.What am I? -Riddles

Last Answer : Mountain

There is a slide in a park. One of its side Company hired one of its walls for 3 months.walls has been painted in some colour with a message “KEEP THE PARK GREEN AND CLEAN -Maths 9th

Description : There is a slide in a park. One of its side Company hired one of its walls for 3 months.walls has been painted in some colour with a message “KEEP THE PARK GREEN AND CLEAN -Maths 9th

Last Answer : Let the sides of the wall be a = 15m, b = 11m, c = 6m Semi-perimeter, Thus, the required area painted in colour = 20√2 m2