Transistor Man

Members
  • Content Count

    30
  • Joined

  • Last visited

About Transistor Man

  • Rank
    Advanced Member

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Transistor Man

    Amazon Prime - take care

    I'm a very infrequent Amazon user. Anyway, a couple of days ago I realised I'm signed up to Amazon Prime. I had no real idea what it was. I've cancelled it, and asked for a refund -- basically, on the grounds of misleading trading practices. I told them I'll close my normal Amazon account if I don't receive one. No idea if I'll get anywhere.
  2. Transistor Man

    Good computer tools for your trade

    Seems to colour my command-file text nicely, by default. Split screen editing of multiple files. I can/do use Vi of course.
  3. Transistor Man

    Good computer tools for your trade

    I carry out support simulations for microelectronics, photonics, RF/microwave, and MEMS design and research. I use: Linux Vim -- my favourite text editor. Latex The linux command line tools, shell scripting Tcl Some Python, Perl The commercial packages for chip design and simulations from Synopsys, Cadence, Mentor Graphics, Ansys etc. to do my actual work.
  4. Transistor Man

    A sheep lying on its back is dying - help it to get upright

    Yeah. Hit it hard. A couple of times. I'd say more humane than breaking it's neck by hand (on a hedgehog??). I remember hitting the rabbit at work. Stone dead, first whack. And no blood. I wouldn't go for a neck-break on a mammal myself. Chickens and fish, maybe.
  5. Transistor Man

    A sheep lying on its back is dying - help it to get upright

    I cycle a lot, and have done this a few times. Coming across hedgehogs and rabbits which have been clipped by cars. Doesn't bother me, I grew up on a small holding, and did a lot of fishing etc. I use a log or rock. I also had to do it at work once, for a rabbit which had been injured by a cat. Once the crows moved in, I'd had enough. I used to get funny looks around the office after.
  6. Transistor Man

    Bye bye Treason May?

    MITI? -- Ministry of International Trade and Industry? Big in the 80s/ semiconductors.
  7. Transistor Man

    Another British Spy banged up abroad

    I got myself in a bit of a mess with my PhD. But just at the end, it came together, and I ended up as a story that made sense. I wrote it all up in 3.5 months, as I had a hard deadline. And I ended up redoing most of the experimental results that went in the thesis. Surreal, working all day, everyday, and right through my birthday, without even noticing. Completely stupid thing to have done. I would have been far better off at work.
  8. Transistor Man

    Ex Rugby foward v 16yo

    Gareth Thomas was a strong, and powerful player. Looks like he chose not to beat the 16 year old up to me, and to prove a point and get a message out.
  9. Transistor Man

    Free energy? Or free mentalist?

    Lucky you missed the Plum Pudding model.
  10. Transistor Man

    Free energy? Or free mentalist?

    Even in the QM view, the magnetism of an atom has two contributions: spin and orbital. In a solid, the orbital contributions cancel. Hence, (para) magnetism of materials arises from the net unpaired spins in the electron shells of the constituent atoms. Strong (ferro-)magnetic behaviour shown by iron and permanent magnets requires an ordering force to align the atomic spins collectively -- to form magnetic domains.. (The ordering force is again due to QM -- the exchange interaction). So all that gives you large-scale macro magnetic materials which form the permanent magnets and the iron core. All well understood physics, which the guy in the video didn't seem to make use of in his analysis at all.
  11. Transistor Man

    Free energy? Or free mentalist?

    Pained me to watch it, but I did. It's a transformer: 2 coils, an iron (ferromagnetic) core, and here's the trick: 8 permanent magnets glued around the iron core. Okay. Stationary, Permanent magnets do not cause a changing magnetic flux/ field. So induce no EMF in the secondary, output coil. Where's the energy gain supposed to come from? I find the whole free-energy subject devastatingly depressing. There's so much amazing science and engineering to learn, and people waste their time on this crap. Did anyone ever follow the Steorn debacle, the Dublin-based company with the 1 page Economist advert? I've only just got my blood pressure down.
  12. Transistor Man

    wtf. just sprayed with insecticide in aeroplane

    Whenever I've flown South Africa to LHR over the past 20 years.
  13. Transistor Man

    5g and Bristol University suicides

    For the shorter wavelength proposed 5G bands: 60 GHz would be 5 mm.
  14. Transistor Man

    Worrying stuff going on in South Africa

    Mrs Transistor is English-speaking South African, and I go there fairly regularly. For a typical Afrikaner farmer, coming here would be culturally shattering. Unlike for the English-speakers, who the Afrikaners have always regarded as having one foot in the UK. (Hence, "Souties": salt dicks.)
  15. Transistor Man

    Numberphile

    I haven't watched all the video yet, but I'm not a fan presenting this topic like this. It's almost dangerously misleading from what I can see, unless they are explaining the context. The sum of all natural numbers is a diverging series. Infinite, to me, in any practical sense. From what I can see, you can get any answer by manipulating an infinite, diverging series.