Confusing questions on cells

I am studying cells in matlab and I have some questions that I find very confusing.

Question 1

 temperature(1,:) = {'01-Jan-2010', [45, 49, 0]};

stuff = temperature(1,1) % stuff = cell
stuff = temperature{1,1} % stuff = content of cell {1,1} which is 01-Jan-2010

Therefore curved brackets pass me the cell and curly brackets pass me the contents of that cell. Why does

stuff = temperature(1,1:end) % stuff = temperature which is a cell
stuff = temperature{1,1:end} % why does it not give me the contents of both into stuff ? I only get stuff = 01-Jan-2010 why the array gone ?

Question 2

I have a 1 x 7 cell where each cell is a 10000 x 1 int. I can use cell2mat to get data

box = cell2mat(cell([1 3:7])); box is now a 10000 x 6 array

But why cant I

box = cell{[1 3:7]} % Box equals to the extracted stuffs (curly brackets) of column 1 and 3 to 7

Question 3

I have a cell of 1 x 7 where each cell contains 10000 elements. How do I convert it a cell of 10000 x 7 ?

Answer 1

[per isakson]

1. cell{[1 3:7]} creates a Comma-Separated Lists, which cannot be assigned to a variable.
2. temperature{1,1:end} - same story