How to weld underwaterBinding two pieces of metal underwater involves a lot of consideration towards safety. There are a few ways welders approach the task. In most cases, and most ideally, a dry chamber system is used. Temporary hyperbaric chambers are used to prevent water from entering the work area.

Fold the sheet of paper into three equal panels, pressing the creases with the thumbnail so they come out sharp.Fold each outer panel into two lengthwise, again pressing each crease with the thumbnail.Fold the four corners of each outer panel inward and in line with the center crease.The folded paper should now look like this, flat with a slit at the center.

SuppliesTrace your hand.Permanent marker, Paper ( lined paper ), Pencil, Markers

By Shelby RogersNovember 07, 2016Marie Curie might be the single most important female scientist in history. Image Courtesy of Wikimedia Were she alive today, Curie would be celebrating her 149th birthday.In her 67 years, the scientific superhero became the first woman to win the Nobel Prize. She& 39;s also the only woman to win the award in two distinct categories - both physics and chemistry.

This guide is best viewed in landscape mode.I have made numerous Santas over the years, giving them away at Christmas time. I get joy out of knowing that folks will be hanging these on their trees for years in the future, thinking about me.You need a well lighted and organized work space. A scroll saw, drill press and Dremel tool make the job easy!

January 11, 2017Artificial Intelligence develops a neural network that can separate criminals and non-criminals by their mugshots.It might sound like a scene from Minority Report, but it is not. Scientists from Shangai Jiao Tong University identified offenders with an accuracy of 89.5 percent via machine-vision algorithms.