A skate can slide over ice because the ice molecules at the surface cannot properly bond with the molecules of the mass of ice beneath and thus are free to move like molecules of liquid water. These molecules remain in a semiliquid state, providing lubrication. It had long been believed that ice is slippery because the pressure of an object in contact with it causes a thin layer to melt. The hypothesis was that the blade of an ice skate, exerting pressure on the ice, melts a thin layer, providing lubrication between the ice and the blade. This explanation, called "pressure melting", originated in the 19th century. This, however, did not account for skating on ice temperatures lower than −3.5°C, whereas skaters often skate on lower-temperature ice. In the 20th century, an alternative explanation, called "friction heating", was proposed, whereby friction of the material was causing the ice layer melting. However, this theory also failed to explain skating at low temperature. In fact, neither explanation explained why ice is slippery when standing still even at below-zero temperatures....
...taken at the ice rink in mymall...
(mymall alışveriş merkezinin buz pistinde çekildi.)
Critiques | Translate
rbassin (18497) 2013-08-23 6:09
une très belle composition minimaliste.
La surface de glace présente une structure fine offrant un bon support au patineur.
Figure artistique bien figée.
danos (87505) 2013-08-23 7:10
Hello My friend,
great the POV of the person on the ice rink that is making even more effective with the well chosen B/W format.I like her placement in the frame as the superb presentation.
drt100 (2053) 2013-08-23 7:31
a very unusual photo, and I am not sure where you are while taking this photo. Your commentary on ice is interesting. Very good use of positioning with the person offset top left ... gives a lot of depth to the ice space - her place in motion is very good ... great share !
Guenther (10915) 2013-08-23 8:16
a great and original snapshot! I like the unusual POV and the cut. The choice of Black & White is quite appropriate... Thanks also for the interesting note.
Have a nice weekend,
Romano46 (18466) 2013-08-23 10:11
le tue foto sono sempre originali e sempre frutto di un attento studio del soggetto.
Anche in questa hai colto perfettamente il segno immergendo il soggetto in un ambiente rarefatto che gli fa perdere il contatto con l'ambiente esterno, tanto da farlo apparire quasi un alienato circondato dal nulla.
Complimenti per l'eccellente postproduzione!
Ciao e buon fine settimana
bayno (18342) 2013-08-23 10:28
and good crop and expression captured, I really like the minimal, perfect choice of monochrome...well done...
goodfella (247) 2013-08-23 11:59
Impressive shot in black and white with a unique bird's eye view over this skater. Nicely done!
willperrett (7348) 2013-08-23 13:59
Not an image I would normally associate with Cyprus! And I wonder how you achieved this PoV, apparently directly above the skater. The ice looks less than smooth, which may account for her concerned expression. But a great capture, of course obeying the rule of thirds...
olive224 (2719) 2013-09-05 5:07
Excellent shot !
Perfectly placed in a strong spot, the illusion of falling is perfect
well seen !
didemay (2945) 2013-09-14 7:19
CLODO (30597) 2013-09-14 7:38
less is more! It takes some time to understand how you managed to get this picture (without looking at the note)
- Copyright: korkut bostanci (bostankorkulugu) (42080)
- Genre: People
- Medium: Black & White
- Date Taken: 2013-08-06
- Categories: Daily Life, Decisive Moment
- Camera: Canon EOS 650D, Canon EF-S18-55mm F3.5-5.6 II USM
- Exposure: f/16, 1/500 seconds
- More Photo Info: view
- Photo Version: Original Version
- Date Submitted: 2013-08-23 5:48