Forgot Password
Pentax Camera Forums Home
 

View Poll Results: Pick the photo you think should win the contest
#1 449.26%
#2 5611.79%
#3 163.37%
#4 51.05%
#5 163.37%
#6 255.26%
#7 265.47%
#8 71.47%
#9 265.47%
#10 112.32%
#11 377.79%
#12 306.32%
#13 347.16%
#14 459.47%
#15 9720.42%
Voters: 475. You may not vote on this poll

Closed Thread
Show Printable Version Search this Thread
1 Like  
VOTE NOW - Photo Contest #150 Poll (Machines in Motion - February 2019)
Posted By: Ole, 03-16-2019, 12:29 AM

Welcome to the poll for our February "Machines in Motion" photo contest! Select the photo you think is the best from among our finalists below:

#1.


#2.


#3.


#4.


#5.


#6.


#7.


#8.


#9.


#10.


#11.


#12.


#13.


#14.


#15.

Views: 4,010
03-16-2019, 04:45 PM   #31
Forum Member




Join Date: Mar 2013
Location: Brisbane
Posts: 63
No 11

03-16-2019, 05:18 PM   #32
Senior Member




Join Date: May 2013
Posts: 121
Voting for Machines in Motion

It is #11 for the winner.
03-16-2019, 05:49 PM   #33
New Member




Join Date: Dec 2014
Posts: 20
#2 is my pick
03-16-2019, 06:03 PM   #34
JWC
New Member




Join Date: Apr 2013
Posts: 3
Machines in Motion Vote #5

Lots of great photos, but #5 grabbed my attention more than the others.

03-16-2019, 06:25 PM   #35
New Member




Join Date: May 2013
Location: Tennessee
Posts: 42
QuoteOriginally posted by cqfast Quote
Seeing the one sharp aircraft tells me that the photographer was carefully following it. Maybe this photo of the sharp vs. motion-blurred aircraft would be more dramatic if there was slightly less overlap of the two aircraft. But it was impressive timing to catch them perfectly overlapping!
I agree. I went to an air show a few years ago and timing and exposure were very difficult. I then had the camera take 5 fps to try and improve my timing.
03-16-2019, 09:21 PM   #36
retired sw engineer
Loyal Site Supporter
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 12,340
I'll always vote for the train.
#13 is leaving smoke behind in its wake.
03-16-2019, 10:12 PM - 2 Likes   #37
Moderator
Man With A Camera
Loyal Site Supporter
Racer X 69's Avatar

Join Date: Jun 2010
Location: The Great Pacific Northwet
Photos: Gallery | Albums
Posts: 17,191
QuoteOriginally posted by gordon_l34 Quote
Hi,
No 14 and again I wonder about how the prop wash was created.
Regards.
QuoteOriginally posted by SSGGeezer Quote
High humidity with each prop and flap edge creating vortices from the change in pressure from high to low after leaving the airfoil! I love it as an amazing technical image and I love aviation images.
QuoteOriginally posted by PJ1 Quote
Too many good ones again, My choice goes against the trend.


This is one I almost went for. I have seen prop wash like that with the naked eye watching aircraft taking off in high humidity.
QuoteOriginally posted by cqfast Quote
I'd very much like to know how that 'propwash' was accomplished!
It is sort of like cavitation.

Like when a boat propeller slices through the water.



The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds".

Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating.

It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails.
03-16-2019, 10:44 PM - 1 Like   #38
Forum Member
raider rob's Avatar

Join Date: Dec 2010
Location: Olathe, KS
Photos: Gallery
Posts: 56
QuoteOriginally posted by Racer X 69 Quote
It is sort of like cavitation.

Like when a boat propeller slices through the water.



The atmosphere has a lot of moisture in it, and the trails formed off the ends of the airplane propellers is water that has been compressed so forcefully and so rapidly that it vaporizes, leaving the linear "clouds".

Also notice the clouds of vapor forming off the back of the main wing, near the fuselage. As it spills off of the top of the wing and fuselage, it speeds up, and again, behaves like water that is cavitating.

It is the same phenomenon as that which creates the vapor trails we see when a jet is cruising at speed 35,000 or 40,000 feet up. The airplane is slicing through a mixture of water, hydrogen, nitrogen, argon, oxygen, carbon dioxide, neon, helium, methane, etc. as it pierces this soup, the aerodynamic shapes manipulate the flow, creating lift and thrust. The pressures, the ways in which they change the properties of the soup, and the speed at which it all happens, make those temporary clouds that look like puffy white trails.
Thanks for the explanation - enough to understand it without making it boring, even for an idiot like me. I've always been fascinated with vapor trails, which is why I voted for #14 as well.

03-16-2019, 11:23 PM   #39
Site Supporter
Site Supporter




Join Date: Dec 2011
Posts: 45
There are so many really great photographs in this contest. They all have something to say but not necessarily "machines in motion". I'm going for number 7.
03-17-2019, 12:08 AM - 1 Like   #40
New Member
Biggles_101's Avatar

Join Date: Jul 2017
Location: Flinders
Posts: 20
No.1 was my choice closely followed by No.13.
03-17-2019, 01:26 AM   #41
New Member




Join Date: Jun 2015
Photos: Gallery
Posts: 15
no 3 is gorgeous! Love ❤️ it[COLOR="Silver"]

Last edited by Finny; 03-17-2019 at 01:46 AM.
03-17-2019, 03:46 AM - 1 Like   #42
New Member




Join Date: Feb 2019
Location: manchester
Posts: 4
no.14!
03-17-2019, 03:52 AM   #43
New Member




Join Date: Feb 2019
Posts: 8
QuoteOriginally posted by Chester UK Quote
Am I the only person bored with aeroplane and motorcycle pictures?
No,you're not ;-))
03-17-2019, 06:02 AM   #44
Senior Member
Rees's Avatar

Join Date: Apr 2009
Location: Cymru
Photos: Gallery | Albums
Posts: 117
Number 15 has my vote. Good luck to everyone.
03-17-2019, 07:36 AM   #45
New Member




Join Date: May 2016
Posts: 8
#9 gets my vote
Closed Thread

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
contest, contest #150 poll, february, love, machines in motion, motion february, photo, photo contest, picture, poll, poll machines, vote now photo
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
February, 2019 photo contest, #150, is "Machines in Motion". Chester UK Monthly Photo Contests 8 03-09-2019 08:23 AM
Expired Contest Poll VOTE NOW - Photo Contest #149 Poll (Contrasting Colors - January 2019) Ole Monthly Photo Contests 39 02-22-2019 10:20 PM
Expired Theme Contest #150 - February, 2019 (Machines in Motion) Ole Monthly Photo Contests 1 02-03-2019 01:34 PM
Expired Contest Poll VOTE NOW - Photo Contest #138 Poll (Moonscape - February 2018) Ole Monthly Photo Contests 49 03-21-2018 08:13 PM
Expired Contest Poll VOTE NOW - Photo Contest #126 Poll (Benches - February 2017) Ole Monthly Photo Contests 51 03-23-2017 04:41 AM



All times are GMT -7. The time now is 07:52 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top