ISF Logo   IS Forum
Forum Index Register Members List Events Mark Forums Read Help

Go Back   International Skeptics Forum » General Topics » Science, Mathematics, Medicine, and Technology
 


Welcome to the International Skeptics Forum, where we discuss skepticism, critical thinking, the paranormal and science in a friendly but lively way. You are currently viewing the forum as a guest, which means you are missing out on discussing matters that are of interest to you. Please consider registering so you can gain full use of the forum features and interact with other Members. Registration is simple, fast and free! Click here to register today.
Reply
Old 21st November 2018, 01:54 PM   #1
jimbob
Uncritical "thinker"
 
jimbob's Avatar
 
Join Date: Jan 2007
Location: UK
Posts: 19,479
Ion drive aircraft

Not a rocket but an ionic wind for a drone with no moving parts.

https://arstechnica.com/science/2018...-moving-parts/
__________________
OECD healthcare spending
Expenditure on healthcare
http://www.oecd.org/els/health-systems/health-data.htm
link is 2015 data (2013 Data below):
UK 8.5% of GDP of which 83.3% is public expenditure - 7.1% of GDP is public spending
US 16.4% of GDP of which 48.2% is public expenditure - 7.9% of GDP is public spending
jimbob is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 21st November 2018, 02:30 PM   #2
Dave Rogers
Bandaged ice that stampedes inexpensively through a scribbled morning waving necessary ankles
 
Dave Rogers's Avatar
 
Join Date: Jan 2007
Location: Cair Paravel, according to XKCD
Posts: 28,159
Wow. I don't care if it has no practical applications for many years, that's just mind-blowingly cool.

Dave
__________________
Me: So what you're saying is that, if the load carrying ability of the lower structure is reduced to the point where it can no longer support the load above it, it will collapse without a jolt, right?

Tony Szamboti: That is right
Dave Rogers is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 21st November 2018, 02:43 PM   #3
jimbob
Uncritical "thinker"
 
jimbob's Avatar
 
Join Date: Jan 2007
Location: UK
Posts: 19,479
Pretty much my view too
__________________
OECD healthcare spending
Expenditure on healthcare
http://www.oecd.org/els/health-systems/health-data.htm
link is 2015 data (2013 Data below):
UK 8.5% of GDP of which 83.3% is public expenditure - 7.1% of GDP is public spending
US 16.4% of GDP of which 48.2% is public expenditure - 7.9% of GDP is public spending
jimbob is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 21st November 2018, 02:46 PM   #4
Giordano
Penultimate Amazing
 
Join Date: Apr 2011
Posts: 15,022
Really neat. Although if widely adapted for drones, etc. would this not generate a lot of ozone pollution?
Giordano is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 06:42 AM   #5
Bikewer
Penultimate Amazing
 
Bikewer's Avatar
 
Join Date: Sep 2003
Location: St. Louis, Mo.
Posts: 12,333
Ionic wind aircraft

Well, baby steps, anyway:

https://www.newsweek.com/worlds-firs...n=Partnerships

Small-scale demonstration of no-moving parts aircraft..
Bikewer is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 06:45 AM   #6
3point14
Pi
 
3point14's Avatar
 
Join Date: Nov 2005
Posts: 16,308
You can make these with wire and tin foil, there are instructions on youtube.

Of course, those ones need external power, the clever thing here is the very light power packs.
__________________
Up the River!
3point14 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 06:46 AM   #7
Darat
Lackey
Administrator
 
Darat's Avatar
 
Join Date: Aug 2001
Location: South East, UK
Posts: 84,262
And scale.

Very cool, love where his inspiration came from.
__________________
I wish I knew how to quit you
Darat is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 07:09 AM   #8
3point14
Pi
 
3point14's Avatar
 
Join Date: Nov 2005
Posts: 16,308
Originally Posted by Darat View Post
And scale.
Ah, yes, good point. I'd failed to note that - Five metres!
__________________
Up the River!
3point14 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 08:13 AM   #9
The Great Zaganza
Maledictorian
 
The Great Zaganza's Avatar
 
Join Date: Aug 2016
Posts: 6,196
This needs to be turned into a Hoverboard ASAP!
__________________
Opinion is divided on the subject. All the others say it is; I say it isnít.
The Great Zaganza is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 08:18 PM   #10
rjh01
Gentleman of leisure
Tagger
 
rjh01's Avatar
 
Join Date: May 2005
Location: Flying around in the sky
Posts: 24,115
There are drone aircraft that are powered by batteries. I wonder if these will be replaced by the new type of aircraft? They will be quieter.
__________________
This signature is for rent.
rjh01 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 08:29 PM   #11
arthwollipot
Observer of Phenomena
 
arthwollipot's Avatar
 
Join Date: Feb 2005
Location: Location, Location
Posts: 59,359
Originally Posted by rjh01 View Post
There are drone aircraft that are powered by batteries. I wonder if these will be replaced by the new type of aircraft? They will be quieter.
I'm fairly sure that these new craft, driven as they are by pushing air across their lifting surfaces, can't hover like today's quad- and hex-copters can. Not that that's a requirement for all drones.
__________________
Wake up, you cardboard.
- Pixie of Key
arthwollipot is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 10:30 PM   #12
Skeptic Ginger
Nasty Woman
 
Skeptic Ginger's Avatar
 
Join Date: Feb 2005
Posts: 70,459
Originally Posted by jimbob View Post
Not a rocket but an ionic wind for a drone with no moving parts.

https://arstechnica.com/science/2018...-moving-parts/
Ion drive sounds great until you see that isn't the power source, a battery creates the ions.

What am I missing?
__________________
Restore checks and balances no matter your party affiliation.
Skeptic Ginger is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 22nd November 2018, 11:10 PM   #13
rjh01
Gentleman of leisure
Tagger
 
rjh01's Avatar
 
Join Date: May 2005
Location: Flying around in the sky
Posts: 24,115
Originally Posted by Skeptic Ginger View Post
Ion drive sounds great until you see that isn't the power source, a battery creates the ions.

What am I missing?
I suggest you are missing nothing. The ions are generated and then accelerated backwards moving the plane forward.
__________________
This signature is for rent.
rjh01 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 27th November 2018, 04:30 PM   #14
jimbob
Uncritical "thinker"
 
jimbob's Avatar
 
Join Date: Jan 2007
Location: UK
Posts: 19,479
Originally Posted by Skeptic Ginger View Post
Ion drive sounds great until you see that isn't the power source, a battery creates the ions.

What am I missing?
As has been said before, nothing really. I should have said that it wasn't a spacecraft as ion drives are pretty mature technologies.
__________________
OECD healthcare spending
Expenditure on healthcare
http://www.oecd.org/els/health-systems/health-data.htm
link is 2015 data (2013 Data below):
UK 8.5% of GDP of which 83.3% is public expenditure - 7.1% of GDP is public spending
US 16.4% of GDP of which 48.2% is public expenditure - 7.9% of GDP is public spending
jimbob is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 28th November 2018, 01:10 PM   #15
Armitage72
Master Poster
 
Join Date: Mar 2012
Posts: 2,327
Originally Posted by 3point14 View Post
You can make these with wire and tin foil, there are instructions on youtube.

Of course, those ones need external power, the clever thing here is the very light power packs.

The Mythbusters tested one years ago, when they were investigating supposed antigravity devices found on the internet. One device floated in the air when connected to power, but didn't move when placed in a vacuum chamber, showing that it was actually ionizing the air to generate thrust.
Armitage72 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Reply

International Skeptics Forum » General Topics » Science, Mathematics, Medicine, and Technology

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -7. The time now is 11:20 PM.
Powered by vBulletin. Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.

This forum began as part of the James Randi Education Foundation (JREF). However, the forum now exists as
an independent entity with no affiliation with or endorsement by the JREF, including the section in reference to "JREF" topics.

Disclaimer: Messages posted in the Forum are solely the opinion of their authors.