No.2 pencils are widely used, but you may not know what the number actually refers to. This video explains how pencils developed into their modern form and the significance of the labeled numbers.

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

Hey, these are dancing shoes! Both: One, two, one, two, one, two, one, two. One, two, one, two, one, two, one, two. Two: Everything is better with two. The two of us ...

Yes, most printable stencils can be resized before printing. Use your printer settings to adjust the size to match your ...

For design inspiration, we put together 60 free, printable pumpkin carving stencils. With so many to choose from, there’s a stencil to fit every carver’s vision. From scary to friendly jack-o ...

For example: the name ANGELINA JOLIE consists of the following numbers: The numbers that are absent are 2, 4 and 8. Therefore, 3 and 8 are the Karmic lesson numbers for a person with this name. Each ...

For more pumpkin decorating ideas, make sure to check out our list of painted pumpkin ideas, simple Halloween crafts, and free printable pumpkin stencils next. You can't go wrong with an oh-so ...

Commissions do not affect our editors' opinions or evaluations. Choosing from a plethora of print-on-demand companies can be overwhelming, especially when you’re looking to find the ideal fit ...

Why not try another whole numbers quiz? The questions in this quiz are suitable for GCSE maths students studying order of operations using a calculator, negative numbers, adding and subtracting ...

and he wasn’t able to have it create holes for 0.2 mm x 0.5 mm pads without first modifying his printer for better X/Y accuracy. In the end, he admits that while a functional DIY solder stencil ...

PCB stencils make application of solder paste a snap, but there’s a long, fussy way to go before the paste goes on. You’ve got to come up with some way to accurately align the stencil over the ...

Brisbane-based scientists build Australia's first facility to transform human waste into renewable energy and a sustainable product called Biochar. Watch all your favourite ABC programs on ABC iview.