- NASA images by Jeff Schmaltz, LANCE/EOSDIS Rapid Response. Caption by Adam Voiland.
- A dense wall of dust pushed across the Arabian Peninsula in late April 2018. The large storm stretched roughly 500 kilometers (300 miles) across the peninsula. When the Visible Infrared Imaging Radiometer Suite (VIIRS) on Suomi NPP captured this image on April 23, 2018, dust had nearly reached Riyadh, Saudi Arabia’s capital and most populous city. Large sand storms in this region are often fueled by strong northwesterly winds known as the shamal.
- And as for the experiments that others have already made, even although these parties should be willing of themselves to communicate them to him, (which is what those who esteem them secrets will never do,) the experiments are, for the most part, accompanied with so many circumstances and superfluous elements, as to make it exceedingly difficult to disentangle the truth from its adjuncts; besides, he will find almost all of them so ill described, or even so false, (because those who made them have wished to see in them only such facts as they deemed conformable to their principles,) that, if in the entire number there should be some of a nature suited to his purpose, still their value could not compensate for the time that would be necessary to make the selection.