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W∴ Balboos, GHB1-Jul-21 5:16

1-Jul-21 5:16

Don't stare at that too long!

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

Daniel Pfeffer1-Jul-21 5:51

Daniel Pfeffer

1-Jul-21 5:51

They will always be your downfall.

Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.

PIEBALDconsult1-Jul-21 5:53

PIEBALDconsult

1-Jul-21 5:53

Beware of the leopard.

FreedMalloc1-Jul-21 6:05

FreedMalloc

1-Jul-21 6:05

I would trust them, they've always seemed fairly down to earth to me.

jeron11-Jul-21 6:16

jeron1

1-Jul-21 6:16

I'm surprised that this thread stayed straight, and did not spiral out of control.

"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment
"Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst
"I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

rnbergren1-Jul-21 9:46

rnbergren

1-Jul-21 9:46

but they are down with that. On occasion.

To err is human to really elephant it up you need a computer

CodeWomble1-Jul-21 12:12

CodeWomble

1-Jul-21 12:12

Apparently they outlawed stairs and police are taking steps.

So I am a developer now (At last!)

Slow Eddie2-Jul-21 9:52

Slow Eddie

2-Jul-21 9:52

Yes, you should. I'll explain ladder.

I've had my ups and downs lately.

Cp-Coder1-Jul-21 4:38

Cp-Coder

1-Jul-21 4:38

So, after a lifetime developing software in all the variations of the C language, and for the last year in Java (specifically JavaFX), I decided that it's time to master the art of developing apps for Android mobile devices.

I bought the Kindle version of "Android Studio 4.2 Development Essentials". I found it to be an excellent starting point as it describes in detail how to configure both your Windows system and your Android phone so that you can write and transfer apps to your phone.

At one point you must convert the phone so it will accept transfers in debug mode from your computer. The moment I did this, the phone declared:

"Congratulations! You are a developer now!"

At last, after 45 years in the business, I am at last a developer! Big Grin | :-D

Get me coffee and no one gets hurt!

modified 2-Jul-21 17:40pm.

den2k881-Jul-21 4:48

den2k88

1-Jul-21 4:48

Quest for Glory VI: So you want to be a Developer

GCS d--(d-) s-/++ a C++++ U+++ P- L+@ E-- W++ N+ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- r+++ y+++* Weapons extension: ma- k++ F+2 X

Mike Hankey1-Jul-21 5:07

Mike Hankey

1-Jul-21 5:07

Congrats

The less you need, the more you have.

Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?

JaxCoder.com

David Crow1-Jul-21 5:22

1-Jul-21 5:22

Have you tried enabling that option again? The ensuing message is equally amusing.

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Slacker0071-Jul-21 5:40

Slacker007

1-Jul-21 5:40

Cp-Coder wrote:
"Congratulations! You are a developer now!"

you should at least get a T-Shirt or a bumper sticker stating such. Big Grin | :-D

abmv1-Jul-21 5:46

abmv

1-Jul-21 5:46

i remember doing a small app for uiq3 just for fun...need to do this for android so I too will now be a developer amen.

Caveat Emptor.

"Progress doesn't come from early risers – progress is made by lazy men looking for easier ways to do things." Lazarus Long

TheRealSteveJudge1-Jul-21 21:33

TheRealSteveJudge

1-Jul-21 21:33

Congratulations!
If I only had known that before...
Just tapping the Build Number 7 times
instead of wasting my time with learning, reading documentation, developing etc.

DerekT-P1-Jul-21 23:12

DerekT-P

1-Jul-21 23:12

Did that and all I got was "Developer mode now enabled".

It clearly knew who I was! Laugh | :laugh:

TheRealSteveJudge2-Jul-21 1:22

TheRealSteveJudge

2-Jul-21 1:22

Maybe Cp-Coder tapped the Build Number more thoroughly than you? Laugh | :laugh:

Pulley question

David Crow1-Jul-21 4:15

1-Jul-21 4:15

This image is the pulley arrangement of a Precor C024ES machine.

Image

I think the arrangement produces a 2:1 mechanical advantage, but empirical testing is causing me to doubt the exact number.

W∴ Balboos, GHB1-Jul-21 4:21

1-Jul-21 4:21

That arrangement gives no mechanical advantage. It just redirects the direction of the force.

Pulleys with mechanical advantage are an assembly where one of the wheels is suspended from the other.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

David Crow1-Jul-21 4:35

1-Jul-21 4:35

Since the top pulley moves, there is a definite advantage, I just don't know by how much.

W∴ Balboos, GHB1-Jul-21 4:47

1-Jul-21 4:47

Pulley - Wikipedia[^]

My assumption from the diagram is that both wheels are held fixed. Although the normal advantage is usually done with a "block and tackle" configuration, as you can see in the wikipedia image, they may be separated.

In the normal Block-and-Tackle configuration, the advantage comes from the lower pulley doing the lifting when it's ropes are shortened and the amount of shortening is proportion to the number of wraps around the pair (usually - 1 for the first wrap over the top wheel). You pull 1m and it shortens the configuration by 1/n m, lifting the weight with a mechanical advantage of n.

If a wheels can move, aside from turning, not evident from the image, it can possibly be a 2:1.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

David Crow1-Jul-21 4:51

1-Jul-21 4:51

W∴ Balboos, GHB wrote:

My assumption from the diagram is that both wheels are held fixed.

Yes, but as I noted, the top pulley moves up & down with the lever.

W∴ Balboos, GHB1-Jul-21 5:14

1-Jul-21 5:14

David Crow wrote:
with the lever.

Then it is, in pulley terms, fixed. On the other hand, if the rope is held fast, the mechanical advantage of the lever comes into play.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

The Science of King David's Court | Object Oriented Programming with C++

David O'Neil1-Jul-21 5:46

David O'Neil

1-Jul-21 5:46

As W∴ Balboos, GHB says, it isn't a pulley problem. It is a moment arm problem. As I attempt to show in this crappy force diagram, if you are lifting a 100 lb weight, the wheel closest to the lifter will be pulling down on the top bar with a force of 200 lb at the wheel connection point, and the pin location will be pulling down on the top bar with a force of 100 lb. That is an incomplete force diagram, but may get you started thinking about the physics.