The new technology can capture mercury vapor in the package through adsorption, protecting users from dangerously high vapor levels caused by incidental exposure during the accumulation, storage and transportation of lamps.
So, what is the concentration of mercury vapor in ten cubic feet of air near where a single CFL device has been broken ? and where in the lamps does this 3 micrograms reside in the lamp, and why would it be in a vapor form at normal room temperatures? My observation of the broken lamps that I have seen is that there are quite large chunks and a few small slivers. I know that the slivers can be nasty and sharp, but clearly most of the white stuff is still in the glass. So where does all of this huge cloud of mercury vapor come from?
OF course it is best to avoid breaking the lamps, but this writeup seems to be intent on arousing hysteria and fomenting panic. If we went back to using candels for light the big hazard would be setting fires, which are probably a lot more dangerous.
I am not advocating stupidity, and I would never allow children to play with broken lights, but the whole tone of the article seems inappropriate for an intellectual publication such as Design News.
Interesting story, Todd. I would guess the packing that absorbs mercury costs quite a bit more than traditional packaging. I wonder whether this will affect its use. Unless there is a government mandate, it could be this packaging will not be widely utilized.
Iterative design — the cycle of prototyping, testing, analyzing, and refining a product — existed long before additive manufacturing, but it has never been as efficient and approachable as it is today with 3D printing.
People usually think of a time constant as the time it takes a first order system to change 63% of the way to the steady state value in response to a step change in the input -- it’s basically a measure of the responsiveness of the system. This is true, but in reality, time constants are often not constant. They can change just like system gains change as the environment or the geometry of the system changes.
At its core, sound is a relatively simple natural phenomenon caused by pressure pulsations or vibrations propagating through various mediums in the world around us. Studies have shown that the complete absence of sound can drive a person insane, causing them to experience hallucinations. Likewise, loud and overwhelming sound can have the same effect. This especially holds true in manufacturing and plant environments where loud noises are the norm.
The tech industry is no stranger to crowdsourcing funding for new projects, and the team at element14 are no strangers to crowdsourcing ideas for new projects through its design competitions. But what about crowdsourcing new components?
It has been common wisdom of late that anything you needed to manufacture could be made more cost-effectively on foreign shores. Following World War II, the label “Made in Japan” was as ubiquitous as is the “Made in China” version today and often had very similar -- not always positive -- connotations. Along the way, Korea, Indonesia, Malaysia, and other Pacific-rim nations have each had their turn at being the preferred low-cost alternative to manufacturing here in the US.
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