The phrase "allow them to observe" is correct and usable in written English.
It can be used when giving permission for someone to watch or monitor a situation or activity.
Example: "In the experiment, we will allow them to observe the reactions taking place in real-time."
Alternatives: "permit them to watch" or "let them see".
While biologists are increasingly relying on computers to sift through reams of genetic information and model processes in silicon that their instruments do not allow them to observe in reality, I.B.M.'s offerings are often more expensive than other options.
The orbits in which they are placed allow them to observe the entire earth, but they cannot pass over a particular spot more frequently than once every 15 days or so.
In the future, the HESS collaboration hopes to extend the array with an additional eight or 12 telescopes, which will allow them to observe even less energetic events.
This, they hope, will reveal what bacteria is out there, and allow them to observe how it moves through the network.
The king and queen returned on 1 November 1941, by which time a "Royal Box" had been installed in the Operations Room to allow them to observe the plotting activities.
Particularly the superior motor control of experts may allow them to observe the ball trajectory longer and better detect the curve of the ball trajectories before initiating their better aimed movements.
In 2014 Hawthorn was the first club to use remote control drones to film training from overhead, allowing them to observe running patterns and structures.
All have in common a certain innocence of mind that allows them to observe life openly and with a sense of fair play, though not without judgment.
That allowed them to observe how a carbon-based molecule rearranged itself into other molecules when temperatures exceeded 194 degrees Fahrenheit.
"High definition video conferencing allows clinicians to look at medical scans and diagnostic tests in great detail – as well as allowing them to observe and diagnose patients remotely," he says.
This allowed them to observe the frequency of extreme weather events in Russia during each decade, with and without the effects of the warming due to human-induced climate change.
