New ways vs Old ways CNC vs manual

[SmithDoor]

off subject rename ​

.

THE NEW WAY vs Old ways​

Some old is more interesting. Simple and work .
Like CNC vs manual equipment. Or fastest 8 spindle automatic screw machine upto 50 parts in minute

When look at like a new engine vs the Old engines the both do same job.
So say the internal combustion hit peck in WW2

What is your view point?

Dave

Here just some of interesting in hand navigation.

 

[SmithDoor]

GPS vs In Hand navigation or GPS vs Astrolabe/Sextant.
One if GPS goes down back to starts works everytime anytime

VS the older way



Dave

 

[Steamchick]

Someone will have made or demonstrate an astrolabe... (or whatever!). Next.
Or
The use of a plumb bob and square to make a level..
5000 years ago the use light - lines of sight - From stick to stick - to make straight lines (lines of sight) when they didn't understand light and eyes and thought the eyes projected beams to see. E.g. many temples and other monuments were accurately aligned to sun, stars, etc.
Fascinating!
K2

 

[SmithDoor]

I.

Someone will have made or demonstrate an astrolabe... (or whatever!). Next.
Or
The use of a plumb bob and square to make a level..
5000 years ago the use light - lines of sight - From stick to stick - to make straight lines (lines of sight) when they didn't understand light and eyes and thought the eyes projected beams to see. E.g. many temples and other monuments were accurately aligned to sun, stars, etc.
Fascinating!
K2

Thank you

I have use theodolite on dry land. Looks interesting to look at the sextant and astrolabe.

But internet on some post will totally different and others look same.

I know the will say on a rolling ship the Sextant is within 20 seconds. I this would closer to minutes. Then Navy best with a few reading can get within 3 notes.

Dave

 

[SmithDoor]

Here is compass a lot have just in case.
Has any one use this type

Dave

 

[SmithDoor]

Just think of building engines back in 1800's and 1900's using a sliderule or paper and pencil.

FYI I like when handheld calculators camd out any remember that day ?

I was talking to my son , he some old ways is more than looking at a cellphone or computer screen for reading books.

Dave

 

[Richard Hed]

Just think of building engines back in 1800's and 1900's using a sliderule or paper and pencil.

FYI I like when handheld calculators camd out any remember that day ?

I was talking to my son , he some old ways is more than looking at a cellphone or computer screen for reading books.

Dave

Shudder! Reading books on a tiny screen--BLASPHEMY! Makes my eyes ache just thimpfking about that. Where I work, the text on the computer screen is about 50thou tall--I cannot read it even with glasses on. So I have to go into settings and try to fix that but it whacks out all the rest of the screen stuff. So I try to ctrl-alt-del + to enlarge the text then all of everything else is enlarged. Honestly, does msux understand anything about the human condition? No, they probably have young people doing all the programming and of course, young peeps don't pay any attention to older folks.

Certain books I buy with the intention of writing in the margins and If I lend them out, insist that the reader also write in the margins, that way any future reader can see other peeps ideas, agreements, disagreements, etc. It's odd however, that some peeps thimpfk that writingt in the margins is BLASPHEMy! Yes, library books should not be written in, but sometimes I get so angry with some nonsense someone is saying in their book that I simply have no choice! So I write a sticky note and place it in the library book.

Wait till those youngsters get older--they too will not be able to read that tiny writing. My son reads on his telephone gadget all the time. Occassionaly handing it to me to read. I fumble a lot trying to enlarge the text to readable size. I have found books that are very old with someone's notes in the margins. It's always interesting to read such. (BTW, that writing was all in pencil so tends to smudge.)

 

[SmithDoor]

Shudder! Reading books on a tiny screen--BLASPHEMY! Makes my eyes ache just thimpfking about that. Where I work, the text on the computer screen is about 50thou tall--I cannot read it even with glasses on. So I have to go into settings and try to fix that but it whacks out all the rest of the screen stuff. So I try to ctrl-alt-del + to enlarge the text then all of everything else is enlarged. Honestly, does msux understand anything about the human condition? No, they probably have young people doing all the programming and of course, young peeps don't pay any attention to older folks.

Certain books I buy with the intention of writing in the margins and If I lend them out, insist that the reader also write in the margins, that way any future reader can see other peeps ideas, agreements, disagreements, etc. It's odd however, that some peeps thimpfk that writingt in the margins is BLASPHEMy! Yes, library books should not be written in, but sometimes I get so angry with some nonsense someone is saying in their book that I simply have no choice! So I write a sticky note and place it in the library book.

Wait till those youngsters get older--they too will not be able to read that tiny writing. My son reads on his telephone gadget all the time. Occassionaly handing it to me to read. I fumble a lot trying to enlarge the text to readable size. I have found books that are very old with someone's notes in the margins. It's always interesting to read such. (BTW, that writing was all in pencil so tends to smudge.)

It drawings in paper vs Autocad.
Paper is more relaxing but Autocad is faster and a redo is only click away.
Last year I gave away my electric eraser but work for demo I. Paper.

I use phone alot because my wife does not want me using laptop and watching TV. I use Adobe reader Liquid mode for a lot reading in front of TV too. But like Laptop nice big print or better a real book and paper.

Dave

 

[Richard Hed]

It drawings in paper vs Autocad.
Paper is more relaxing but Autocad is faster and a redo is only click away.
Last year I gave away my electric eraser but work for demo I. Paper.

I use phone alot because my wife does not want me using laptop and watching TV. I use Adobe reader Liquid mode for a lot reading in front of TV too. But like Laptop nice big print or better a real book and paper.

Dave

Odd thing is, there is a lot of text on computer screen that I can enlarge, and not a much of a problem. HOwefer, there are some things, notably on msux's "letter-heads", I don't know what they are called, but they are endemic and they are NOT enlargeable without enlarging the whole screen--that is, go into the settings and enlarge the text, but it does NOT enlarge the text on these places I'm talking about. Hmmm. Sh*tty programing on msux's part. I still have diffficulty reading text that is only about 50thou tall and not enlargeable.

 

[SmithDoor]

Odd thing is, there is a lot of text on computer screen that I can enlarge, and not a much of a problem. HOwefer, there are some things, notably on msux's "letter-heads", I don't know what they are called, but they are endemic and they are NOT enlargeable without enlarging the whole screen--that is, go into the settings and enlarge the text, but it does NOT enlarge the text on these places I'm talking about. Hmmm. Sh*tty programing on msux's part. I still have diffficulty reading text that is only about 50thou tall and not enlargeable.

I agree

I have some printed put copier and enlarge to read.
I thing there being paid by letter on page too. They can say a lot about nothing

Dave

 

[ShopShoe]

Deviating Slightly (Possibly)....

IMO, Best teachers demonstrate and encourage multiple approaches to everything. Students exposed to different things bill be able to solve problems and really cope with whatever comes.

An Industrial Tech. teacher I knew insisted on students following the process:

Think It. -- Sketch It -- Draft It (Usually Roughly) -- CAD it. These students easily transitioned to 3-D modeling because they understood the design processes involved and were working on a project rather than an assignment mimicking something in a textbook.

Outside Industrial Tech. I have seen Fourth Grade math students learn statistical concepts with multiple approaches who are capable of explaining central tendencies and standard deviations to adults.

Math students above are expected to work without and with calculators. Politicians are passing laws to ban cell phones in school, but I know that as soon as they started appearing there were teachers who were developing lesson plans that used smartphone apps as teaching tools and aids to completion of assignments.

Things Change: We can be nostalgic and study history and also embrace some of the new things that come along.

--ShopShoe

 

[Richard Hed]

Deviating Slightly (Possibly)....

IMO, Best teachers demonstrate and encourage multiple approaches to everything. Students exposed to different things bill be able to solve problems and really cope with whatever comes.

An Industrial Tech. teacher I knew insisted on students following the process:

Think It. -- Sketch It -- Draft It (Usually Roughly) -- CAD it. These students easily transitioned to 3-D modeling because they understood the design processes involved and were working on a project rather than an assignment mimicking something in a textbook.

Outside Industrial Tech. I have seen Fourth Grade math students learn statistical concepts with multiple approaches who are capable of explaining central tendencies and standard deviations to adults.

Math students above are expected to work without and with calculators. Politicians are passing laws to ban cell phones in school, but I know that as soon as they started appearing there were teachers who were developing lesson plans that used smartphone apps as teaching tools and aids to completion of assignments.

Things Change: We can be nostalgic and study history and also embrace some of the new things that come along.

--ShopShoe

Yes, yes, and YES. I insist, also, that my students estimate, estimate, estimate--but do they do it? not usually. But they are young, plastic and mouldable so by hitting them constantly with methods that NEED to be estimated, they learn. I also have taught them to measure the thickness of a fingernail, a piece of typing paper, the width of finger, width of hand and length of arm from elbow to tip of finger, and distaance of spread hands from thumb to little fing. This is all for estimating and knowing if some operation is in the ball park.

In the Philippines I was putting in re-bar (they call it "deformed-bar"--so much for the AMERICAN language!a) and the spread of the bars was 8". So what was my best worker but the one least blest with good sense doing? He was measuring the damned things with a tape measure. Of course, this did not please me, as it would take three times as long to do this (I mean come one, maybe we need a micrometer to measure it to 8.000"?) So I showed him how to just estimate the placement with the points between thumb and finger. Much faster. And did it vary by .005"? LOL.

Yes, I also find that there is ONE subject that one needs a degree in--usually. That is Math. I believe that not knowing math is a terrible thing to be teaching--it has ruined more students than has taught them. I'm not talking about Arithmetic, Anyone can teach that. But the three branches of Math are arithmetic, algebra and Calculus (and another 1/2: computer stuff). To teach the algebra and calc, you really need to understand that to be able to teach it. AND our schools, as we all know are remiss, they should be teaching the rudiments of Calculus in 6th grade. THey should also teach history not as propaganda but as history. Should I write a book on this?

 

[Larry Schweitzer]

they should be teaching the rudiments of Calculus in 6th grade. THey should also teach history not as propaganda but as history. Should I write a book on this?

My views are skewered by my (old) age. Teaching should concentrate on thinking not memorizing. Give problems that require multiple ways of figuring out the solution(s.) I. E. real life! I don't know if you can teach inquisitiveness or not. But seems like an ideal subject. Learn the basics of navigating by the stars, might save you some day. (old Navy guy here, know how to use a sextant but that wouldn't be needed to find your way out of the desert.) Math beyond being able to count to 21 should be a requirement. Trig is so useful that everyone should have a basic understanding. I had a math minor in college (pre-computer days.)
I taught math to sailors to help them advance their rate. Some got it easily, some not so much. It was something I did voluntarily during long days at sea.