Titanium
by bspurgeon

Comment:
A watch is never very interesting to me as a photo unless it's in an advertisement. But the dark features and the way you got the little hand with its shadow to stick out makes it very interesting.

I don't mind this at all. Great effort!

Hydrogen Gas via Electrolysis
by OdysseyF22

Comment:
I agree with the title and it is a great idea. It's just not IMO a good looking photo. Who wants to look at a battery? But I understand you had to have it there in order to prove your point...

It would have been somewhat better to me if at least the pencil had been in focus.

The Midas Touch
by karmat

Comment:
Very nice. No sense to comment too much about the technical aspects (lighting, diagonal etc.) as it is all good. This photo makes me wonder what else is happening with this person and who he is with.

One of the better ones so far in this challenge

Element: Iron (Ore) Symbol: Fe
by Delta_6

Comment:
It's an image of a rock although not a bad looking rock. Technically it is good but does not for me make an interesting photo.

Al for Aluminum
by AmeedEl-Ghoul

Comment:
Not very pleasing to my eye but sharp. Too busy and I just don't see the photographic value in this.
To produce a sharp picture in this day and age is just not too hard with even el-cheapo snap shot cameras with built in IS and 10MP. We (including myself) really have to learn taking pictures that conveys something else than the objects by them selves - as long as their not intended for stock photography of course.

Copper bowl
by BrennanOB

Comment:
A little busy but a good idea

Falling Gold
by JMart

Comment:
I see that - but just not a very attractive image.

Isometric-Hexoctahedral Crystal Lattice- Allotrope of Carbon
by LanndonKane

Comment:
Not a bad attempt. Not sure about the frame but I love the minimalistic look

Wings of Titanium
by Blackbox

Comment:
I like it but I'm also plane crazy... :)

82-Pb
by tfarrell23

Comment:
A good composition. You managed to convey a warm and pleasing atmosphere.