Our idea was to make that which is invisible, visible".
We show that ball lightning is caused by the stepped leader, which is invisible with the naked eye.
It is still unknown about outcome of biopsy-proven IB1 cervical cancer, which is invisible on preoperative magnetic resonance imaging (MRI).
That light, which is invisible to the flies, didn't disrupt their behavior and provided a visual pattern the robot could use to distinguish between individuals.
"There is nothing scientifically impossible, so far as I can see, in some people seeing that which is invisible to others," he wrote.
This uses specially bright light-emitting diodes in the markers, though they emit flashes of infra-red light which is invisible to the naked eye.
In theory, a disk-level image of the phone's internal memory would reveal the contents of such a folder, which is invisible at the OS level.
Dark energy is not the same as dark matter, which is invisible but has been detected indirectly and which accounts for about a quarter of the remaining universe.
The company ThreatMetrix has been working in this latter area for a decade and 30,000 websites and apps use its technology, which is invisible to the customer.
"Evidence for the WHIM has even been much harder to find than evidence for dark matter, which is invisible but can be detected because of its gravitational effects on stars and galaxies," said Fang.
For years, Chinese officials had been trying to limit public information to data on PM 10 or other pollutants that are generally considered less deadly than PM 2.5, which is invisible and can lodge deep in the lungs.
