Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "David B." Newsgroups: uk.comp.sys.mac Subject: Re: MacBook double problem Date: Thu, 18 Sep 2025 22:36:55 +0100 Lines: 42 Message-ID: References: <1ri3pm3.e9qkqnnfdq68N%liz@poppyrecords.invalid.invalid> <1rivluc.sst8k2vpkeggN%liz@poppyrecords.invalid.invalid> Reply-To: boaterdave@hotmail.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net B1alBKPqrdF7S2G0cEquiAw2jU3i8V3pyF1bN1aBi4urc3R1T8 Cancel-Lock: sha1:A3nuqH/EfsGNbEY7Xbz2wB0w/cg= sha256:3FLXJ7tKm9m6hCdgS/XfsqCjE8RYI+VtgMn9UMtxApM= User-Agent: Mozilla Thunderbird Content-Language: en-GB In-Reply-To: <1rivluc.sst8k2vpkeggN%liz@poppyrecords.invalid.invalid> Xref: csiph.com uk.comp.sys.mac:181907 On 18/09/2025 21:57, Liz Tuddenham wrote: > Liz Tuddenham wrote: > >> I have a MacBook which I haven't used for about a year. The battery was >> swelling up so I took it out - I presumed the laptop would run directly >> from the power supply if I needed to use it. >> >> Today I have tried to start it on the power supply but it showns no sign >> of life, even after leaving it on for several hours. >> >> The reason I need to start it is that I am giving a talk in a couple of >> weeks and have realised that the apparatus I am demonstrating is a bit >> small to be easily seen by the audience. Someone suggested that the >> camera in the MacBook might be trained on the apparatus and a projector, >> which is already in the hall, could be connected so as to display a >> large picture. > > I'm pleased to say the talk went well, picture at: > Heavens! I haven't seen an AVO for years! ;-) https://en.wikipedia.org/wiki/Avometer > I realised that I needed light on the demonstration equipment, so I > brought along a stage lighting bar which you can just see at the top of > the picture (right of centre). By directing the light only where it was > needed and using a small screen for the presentation, I got sufficient > contrast and brightness on the screen. > > We arranged the chairs in two concentric horseshoes but several more > people turned up unexpectedly at the last minute, so we had to put in a > third row. I'm not sure if they were able to see all the detail but > nobody complained. > > > Many Thanks to everyone on this group who tried to help with the camera > problem - I don't think it could have worked without a lot more > equipment and wiring. > >