UK: Scientists at Liverpool School of Tropical Medicine testing samples of Covid-19

The transcript captures a series of attempts and feedback during a video tutorial. It begins with encouragement to try again, followed by positive feedback on the progress and quality of the work. The session concludes with final remarks and closure.

What does the speaker mean by 'trying to more times'?

What do you think about the appearance mentioned in the text?

How does the speaker feel about the property mentioned?

What is the significance of the statement 'You know we can hear you'?

What does the speaker imply by saying 'it's pretty much just closed'?