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Earth will have a second moon – level 2
27-09-2024 15:00
A recent study says that Earth will have a...Earth will have a second moon – level 3
27-09-2024 15:00
According to a study in Research Notes of the...How Video Calling Started – level 1
26-09-2024 15:00
Video calling is a technology when you call somebody....How Video Calling Started – level 2
26-09-2024 15:00
In the late 1890s, people started to think that...How Video Calling Started – level 3
26-09-2024 15:00
The development of video calling started in the late...