Lewin Day

Humans have lots of basic requirements that need to be met in order to stay alive. Food is a necessary one, though it’s possible to go without for great stretches of time. Water is more important, with survival becoming difficult beyond a few days in its ... See more

Disposable cameras are a fun way to get into classical photography. However, they can also be a valuable source of interesting parts that can be put to other uses. For example, as demonstrates, their viewfinders can be repurposed into a rather interesting... See more

Typically, lamps provide a stationary source of light to illuminate a given area and help us see what we’re doing. However, they can also be a little more artistic and eye-catching, .](https://sites.google.com/view/huy-materials-used/windmill-desk-lamp) I... See more

Hopscotch is a game usually played with painted lines or with the aid of a bit of chalk. However, if you desire fancier equipment, .](https://www.instructables.com/Interactive-Hopscotch/) The build uses yoga mats as the raw material to create each individ... See more

Once upon a time, surgery was done on patents who were fully conscious and awake. As you might imagine, this was a nasty experience for all involved, and particularly the patients. Eventually, medical science developed the techniques of anaesthesia, which... See more