Deploying a pair of sweeping lasers that sent 400,000 pulses per second toward the ground, as well as an imaging spectrometer that could detect the chemical and light-reflecting properties of individual plants and trees 7,000 feet below, the researchers were able to instantaneously gather a vast amount of information about the unexplored tracts of cloud forest that passed beneath their airplane.
I think an interesting example is a study that we did in Germany with some of the research institutes there on the behavior of students in classrooms, where we clearly could detect the impact of lighting on their learning results.
An identical Arecibo telescope could detect the radar emission out to about 3,000 light years if it's pointed directly at us.
Or the device could use an array of flashing, infrared-light-emitting diodes; sensors would then detect the light's reflection off of a hand, Wigdor explains.
Although it was known beforehand that melanopsin-producing cells could detect light for subconscious visual processes, the Manchester scientists showed that higher visual centres including the visual cortex were also able to respond to light in these animals.
To further assess the nature of notochord defects in morphant embryos, we analyzed notochord structure in col27a1a morphants by transmission electron microscopy at the earliest stage in which we could detect irregularities by light microscopy (∼4.5 SSL).
Students built little electronic contraptions with $30 computers called Arduinos, and attached several sensors, including ones that could detect light, noise and movement.
After establishing that we could use the binary Cre-viral system to express ChR2 in parvalbumin expressing neurons, we next tested whether we could detect light triggered activity in this population of tagged neurons.
Last month, scientists reported finding deep sea crabs that could detect ultraviolet light--even though they live in a world of nearly complete darkness.
There are a couple of factors that might limit us from detecting the light from that object: 1. something might come between us and that light-emitting object, blocking its light; 2. the amount of light it might be emitting could be very little, being too dim to be seen when placed too far away.
