I will be grateful if anyone can recommend a lawnmower for a small
garden.

Cylinder mowers _must_ have a thermal cut-out (or whatever it might be
called). What considerations are relevant if choosing between rotary
and hover mowers?

[Why are they called "rotary" mowers? Something rotates in all of them,
doesn't it?]

If replying please keep in mind that you are addressing a person with
limited knowledge and brain-power.

--
Which of the seven heavens / Was responsible her smile /
Wouldn't be sure but attested / That, whoever it was, a god /
Worth kneeling-to for a while / Had tabernacled and rested.