A solar-powered airplane finished crossing the United States on Saturday, landing in New York City after flying over the Statue of Liberty during its historic bid to circle the globe, the project team said. The spindly, single-seat experimental aircraft, dubbed Solar Impulse 2, arrived at New York's John F. Kennedy International Airport at about 4 a.m. local time after it took off about five hours beforehand at Lehigh Valley International Airport in Pennsylvania, the team reported on the airplane's website. Such a pleasure to land in New York! For the 14th time we celebrate sustainability," said the project's co-founder Andre Borschberg on Twitter after flying over the city and the Statue of Liberty during the 14th leg of the trip around the globe. The Swiss team flying the aircraft in a campaign to build support for clean energy technologies hopes eventually to complete its circumnavigation in Abu Dhabi, where the journey began in March 2015. The solar cr...
Water. This drives every compressed air user nuts!!! Every time they use an air tool, blow-off gun, or even fill the inflatable air mattress, water appears along with the compressed air. The water is a problem if the compressed air is moving through a tool that can rust or be negatively affected by airborne particles, and, given enough 'fill-ups and empties' a significant amount of water will appear in anything which you inflate or run with compressed air. Why? Well, we know that relative humidity is the measure of water moisture in the air expressed as a percentage. At a relative humidity of 90% for example (really hot and sticky) the atmosphere is holding 90% of the total amount of water vapour it can hold. When the relative humidity in the air exceeds 100%, it usually rains. That, unfortunately, seems to happen mostly on weekends! :-) Now, let's take some of that atmosphere with it's 90% relative humidity and compress it. What do we want the f...