Go Back   EcoModder Forum > Off-Topic > The Lounge
Register Now
 Register Now
 


Closed Thread  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-10-2019, 07:16 PM   #4481 (permalink)
In the fasting lane
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,970

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 50.59 mpg (US)
Thanks: 1,693
Thanked 2,212 Times in 1,432 Posts
Another fun test of induced electromagnetism:
If you have a copper pipe, like an old piece of plumbing, and a magnet that fits inside it - hold the tube vertical and drop the magnet in.
It will take several seconds to descend through the tube!

The reason is that the magnetic field induces a current going round the tube, creating a magnetic field opposing that of the falling magnet. As the copper has some electrical resistance the currents die down, the field drops off and the magnet sinks down, but by doing so increases the magnetic field further down the tube.

Now if you cut a slit alongside the tube so the current can't go round you'll see in that part it will hardly impede the magnet at all. There will still be local currents, but no longer the strong one going round. It will still impede the magnet slightly, but the difference is enormous.

This principle is used in frictionless shock absorbers. By replacing the tube with coils and controlling the current one can control the level of dampening and venture into active suspension or even temporary ride height adjustment.

__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.17 Gmeter or 0.1 Mmile.



Investors woes:
"In hindsight, I should have placed a bet on the horse that won the race"
"In hindsight, I should have bet more on that horse"

Last edited by RedDevil; 01-10-2019 at 07:25 PM..
 
The Following User Says Thank You to RedDevil For This Useful Post:
aerohead (01-12-2019)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-10-2019, 07:30 PM   #4482 (permalink)
In the fasting lane
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,970

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 50.59 mpg (US)
Thanks: 1,693
Thanked 2,212 Times in 1,432 Posts
Ars Technica

Seeking out the above Ars Technica sprung a video about variance in global sea level rising on me:
https://thescene.com/watch/arstechni...ing-sea-levels

Stunning how we up North would suffer greatly from Antarctic ice melting but might benefit slightly from melting Greenland glaciers, while things are the exact opposite down south...
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.17 Gmeter or 0.1 Mmile.



Investors woes:
"In hindsight, I should have placed a bet on the horse that won the race"
"In hindsight, I should have bet more on that horse"

Last edited by RedDevil; 01-10-2019 at 07:37 PM..
 
The Following User Says Thank You to RedDevil For This Useful Post:
aerohead (01-12-2019)
Old 01-10-2019, 07:34 PM   #4483 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,767

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.18 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 14.81 mpg (US)
Thanks: 3,355
Thanked 3,691 Times in 2,767 Posts
A maintenance guy at my previous job told me to take his crescent wrench and walk down the stairs from the 2nd story to the 1st, near the superconducting silicon ingot "pullers". The wrench resisted movement as I held it out from me, and I still have no idea how that works.

Had a death grip on the thing since procedure is to remove all ferrous metal before entering the room, and one guy had a jack get away from him and destroy some protective railing. I'd hate to delay 100,000 Intel chips because I was goofing off with magnets.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
 
The Following User Says Thank You to redpoint5 For This Useful Post:
aerohead (01-12-2019)
Old 01-10-2019, 08:29 PM   #4484 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 21,382
Thanks: 5,992
Thanked 6,947 Times in 5,630 Posts
Magnetism? You don't know the half of it.

__________________
.
.

"We find that whole communities suddenly fix their minds upon one object, and go mad in its pursuit; that millions of people become simultaneously impressed with one delusion, and run after it, till their attention is caught by some new folly more captivating than the first."
Extraordinary Popular Delusions and the Madness of Crowds -- Charles Mackay 1841

____________________

Without freedom of speech we wouldn't know who all the idiots are.
anonymous poster

____________________
 
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (01-12-2019)
Old 01-10-2019, 08:43 PM   #4485 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,767

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.18 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 14.81 mpg (US)
Thanks: 3,355
Thanked 3,691 Times in 2,767 Posts
I just don't get how the superconducting magnets can cause objects to be attracted, resist any movement, or repel. What parameters were different to cause a jack to be yanked from a guy? I'd have hated to meet those conditions.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
 
The Following User Says Thank You to redpoint5 For This Useful Post:
aerohead (01-12-2019)
Old 01-10-2019, 09:13 PM   #4486 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 21,382
Thanks: 5,992
Thanked 6,947 Times in 5,630 Posts
It's a question that's been asked before: https://duckduckgo.com/?q=icp+magnets

With the jack it was probably going inadvertently going over-center on a fulcrum point.

I have a better handle on electromagnets than permanent magnets. Look for History and Theory of Electricity (aka The Theory of Anti-relativity) by Eric P. Dollard on Youtube. It's 3 1/2 hours.
__________________
.
.

"We find that whole communities suddenly fix their minds upon one object, and go mad in its pursuit; that millions of people become simultaneously impressed with one delusion, and run after it, till their attention is caught by some new folly more captivating than the first."
Extraordinary Popular Delusions and the Madness of Crowds -- Charles Mackay 1841

____________________

Without freedom of speech we wouldn't know who all the idiots are.
anonymous poster

____________________
 
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (01-12-2019)
Old 01-11-2019, 01:07 PM   #4487 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,892

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,440
Thanked 2,921 Times in 1,830 Posts
Oceans Are Warming Faster Than Previously Thought, Research Finds

This is the trend - science has been too conservative on their estimate of time scale and pace of changes in the climate. We are seeing things get worse, at an accelerated rate, than we thought recently.

The oceans are getting 40% warmer than we thought just 5 years ago.

Remember what happens as water gets warmer?

It holds less dissolved gases by volume. So, the ocean will begin to release the carbon dioxide that it has been absorbing ...
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/

Last edited by NeilBlanchard; 01-11-2019 at 01:22 PM..
 
The Following User Says Thank You to NeilBlanchard For This Useful Post:
aerohead (01-12-2019)
Old 01-11-2019, 03:08 PM   #4488 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 21,382
Thanks: 5,992
Thanked 6,947 Times in 5,630 Posts
Scott Adams has settled on the oceans as a known unknown.

The latest episode (370) has a terse transcript, here's the relevant section:
Quote:
Why are there gaps in parts of the scientists climate change stance?
The historical data used in the hockey stick graph
It shows an earlier point, before CO2, same hockey stick
ClimateGate emails are a conspiracy theory, completely debunked
Data discrepancies from the past, tree ring experts and proxies
From 1960 to present, tree rings don’t track temperatures
Tree ring data was good in the past…but not now?
Challenge responses about William Happer’s claims and validity
Scientists say you can’t look at just some regions, need whole world
NASA site “proof” of warming is the Arctic…one area?
Some places are warming…but not all? Some are cooling?
Can we accurately measure ocean temperatures, today and historically?
How much of the ocean are we measuring, maybe 1%?
I'm sorry I can't preserve his indenting. vBulletin collapses spaces, disallows tabs and 'prettifies' indenting. You can use Quote to see it, else go to Youtube.
__________________
.
.

"We find that whole communities suddenly fix their minds upon one object, and go mad in its pursuit; that millions of people become simultaneously impressed with one delusion, and run after it, till their attention is caught by some new folly more captivating than the first."
Extraordinary Popular Delusions and the Madness of Crowds -- Charles Mackay 1841

____________________

Without freedom of speech we wouldn't know who all the idiots are.
anonymous poster

____________________
 
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (01-12-2019)
Old 01-11-2019, 03:51 PM   #4489 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,767

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.18 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 14.81 mpg (US)
Thanks: 3,355
Thanked 3,691 Times in 2,767 Posts
I like Scott Adams, so I'll check it out eventually.

The thing that makes GW/GCC believers sound like religious zealots is that any negative event that occurs they will proclaim "see, that's what global warming does". It could be a colder than normal week in Chicago, and we're then told that it's directly attributable to GW, which is directly attributable to human CO2 production.

Thiests make similar proclamations when something complex is attributed to an all-encompassing God did it explanation.

I don't begrudge anyone for behaving that way because people have their reasons for conviction, and if their beliefs are true, it demands a response. They may very well be correct in their broad reflexive proclamation, but the subject deserves as detailed a response as can be articulated. It isn't useful to say "because God" or "because global warming".

That is a reason I keep coming back to this thread though, because plenty of people on here are willing to provide as much info as they can come up with to support their understanding of things.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
 
The Following User Says Thank You to redpoint5 For This Useful Post:
aerohead (01-12-2019)
Old 01-11-2019, 09:33 PM   #4490 (permalink)
Banned
 
Join Date: Feb 2018
Location: Brazil
Posts: 1,476
Thanks: 14
Thanked 362 Times in 327 Posts
Today a news commentary informed that there are already a few flatearthers in the course of engineering in a federal university of Brazil (UFMG).

https://www1.folha.uol.com.br/coluna...ratorias.shtml

I would like that such people commit suicide. No kinding.

Quote:
Originally Posted by redpoint5 View Post
Flat Earthers are an extremely small and harmless group. There's no reason to worry about them.


Last edited by All Darc; 01-11-2019 at 09:40 PM..
 
The Following User Says Thank You to All Darc For This Useful Post:
aerohead (01-12-2019)
Closed Thread  Post New Thread


Tags
lies, opinion, reality, scam

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com