The powder comes in a bottle with a long straw attachment that you use to create small barriers of powder. (geekwrapped.com)
According to Apple, increasing the megapixels of the iSight camera has not resulted in any downgrades to image quality like color bleeding, artifacts, or noise, thanks to precise placement of color filters and «Deep Trench Isolation,» which adds small barriers between each pixel so the colors can't bleed into one another to affect color accuracy. (macrumors.com)
«Hybrid» solution with small barriers affordable now Assuming a «middle climate change» scenario of about a foot of sea - level rise by midcentury, the team further assessed the cost - effectiveness of each flood - control strategy by measuring whether its benefits, or avoided risk, would outweigh the investment costs. (scientificamerican.com)