morphle

20 ms·

1. 271.▲
   by morphle 3y ago

   >just because we have credit cards doesn't mean we use them I concur, using credit cards is rather dangerous, especially online and in app forms for both buyer and seller alike [6]. >SEPA based payments work out far better Indeed
2. 272.▲
   by morphle 3y ago

   I'm afraid it's mostly the opposite, a death rate improvement. I can't find the publication with the official soldier death toll numbers - not that you can trust any wartime publication - but the second highest death toll was
3. 273.▲
   by morphle 3y ago

   After 28 months I still can not get my second Starlink dish and account activated. You can't find an address, phone number or email to contact the company. They do offer a chat function to a helpdesk (which is not the Starlink/Spa
4. 274.▲
   by morphle 3y ago

   That is because this Ukrainan's website is hosted on an expensive $14.95 webhost plan https://fozzy.com/us/shared-hosting.shtml
5. 275.▲
   by morphle 3y ago

   This Macos app will only work an MacOS 13 or later.
6. 276.▲
   by morphle 3y ago

   I disagree. Software and hardware optimisations have not happened since the Rocky Mountain Institute did this data centre efficiency analysis [1]. If I had the time I could add numbers from Google, Microsoft and other hyperscaler analyses o
7. 277.▲
   by morphle 3y ago

   I'm sure you are right but the numbers for 2023 will be published next year. We can also estimate [2] and extrapolate from the recent shift of 30% (?) of bitcoin mining from China to the US [1]. ARPA-E funded the tabulation of all US e
8. 278.▲
   by morphle 3y ago

   We don't know exactly how much electricity the AI/ML part of global energy use is, but it is being counted as part of the global datacenter energy use. The estimates are between 1% and 5% worldwide depending on the used definition
9. 279.▲
   by morphle 3y ago

   Very good advice for consultants and freelancers: https://www.youtube.com/watch?v=jVkLVRt6c1U TL;DR: Make good consulting contracts with a proper lawyer
10. 280.▲
    by morphle 3y ago

    Dan Ingalls wrote this in the Byte Magazine [1] dedicated to Smalltalk-80 in 1981. Smalltalk is its own operating system, it ran on the 1973 Alto that had 16 core processor and was multitasking. It was the first Graphical User Interface (GU
11. 281.▲
    by morphle 3y ago

    “An operating system is a collection of things that don’t fit inside a programming language; there shouldn’t be one” - Dan Ingalls 1981
12. 282.▲
    by morphle 3y ago

    I forgot to mention a single chip has three inverters in it for three solar cells or batteries or a combination of two cells and one battery. There are 6 ADC's on board. The 8 bit cores are very much like the I/O processors of the
13. 283.▲
    by morphle 3y ago

    Yes and no. If you run the inverters or network at 100Khz up to 1 Mhz you get much different EMI than if you run them at 1 Khz. The inductor and ADC also play a role. We will know this only after we mass produce the chip, my test chips and
14. 284.▲
    by morphle 3y ago

    >Attaching an MCU to an inverter isn’t exactly new technology No, its nothing special. Texas Instruments, Analog Devices and many others sell such chips for decades for several dollars each. What makes our chips (Microcontroller SoC) spe
15. 285.▲
    by morphle 3y ago

    We wire the solar cells in parallel to the MPPT nano-inverter chip (0.625 square milimeter). The 6V output of the inverters we can wire in series (we aggregate the voltage and current). 60 cells per panel gives 360V DC and 1.68 A output per
16. 286.▲
    by morphle 3y ago

    https://www.youtube.com/watch?v=mLEOZO1GwVc
17. 287.▲
    by morphle 3y ago

    I am writing the datasheet for the reconfigurable MPPT bidirectional buck/boost flyback invertor microcontroller SoC chips as we speak [1]. Do you have an email I can send it to? The older white paper is very much related, it describes
18. 288.▲
    by morphle 3y ago

    We designed and built these inverters that can work on the 0.5 volt output of an individual cell. I built discreet component prototypes and then designed the chips. With 0.5 volt currents and voltages are small so you need only thin cheap w
19. 289.▲
    by morphle 3y ago

    You want to wire all the solar cells (72-122 solar cells per solar panel) in parallel, even the different layers of a cell you should wire in parallel. The same goes for batteries. The reason everyone wires solar panels and batteries in ser
20. 290.▲
    by morphle 3y ago

    Yes, batteries also become cheaper over time.
21. 291.▲
    by morphle 3y ago

    The cost of domestic installation on a new house varies wildly worldwide. In the USA labour and permitting cost dominate, rooftop solar installation costs are almost double what they are in Australia or the Netherlands, where they have the
22. 292.▲
    by morphle 3y ago

    Indeed. LCOE means taking all cost factors into account, not just efficiency or land cost. Rarely does a LCOE calculation cover all these costs, so the published numbers are still hard to compare.
23. 293.▲
    by morphle 3y ago

    "We" is my small 20 year old Metamorph Research Institute and our spinoff companies Morphle Inc and Fiberhood Coöperation. Apologies, my websites are down and I still need to publish the science papers on the tiny MPPT chips and m
24. 294.▲
    by morphle 3y ago

    You are referring to Wright’s Law [1]. For more than four decades, the price of solar panels declined by 20% with each doubling of global cumulative capacity[2], but you should check that with many more data sources, especially reputable or
25. 295.▲
    by morphle 3y ago

    String inverters are very inefficient in multiple ways over micro- and nano-inverters. A single shaded solar panel will bring down the electricity yield of the entire string. You solve heavy tree cover and other sources of shade with indivi
26. 296.▲
    by morphle 3y ago

    Indeed. For example utility scale solar can be less than 30% the cost of a residential solar installation, but also adds profit margins, interest rates and distribution costs to a residential customer. In the later Ringworld books Larry Niv
27. 297.▲
    by morphle 3y ago

    All these kinds of solar cell systems come down in price over time, not just this Oxford PV research when (and if) it goes into mass production. I agree that there is no single metric to decide "better". But in most cases properly
28. 298.▲
    by morphle 3y ago

    Efficiency as measured in the lab is the wrong metric for solar panels. If you want to buy solar panels, you go for the Levelized Cost of Electricity (LCOE). It looks at the cost of electricity of the entire system over its lifetime. It tak
29. 299.▲
    by morphle 3y ago

    You usually want to start comparing the largest drives sizes for mass production consumer drives. In Q1 2024 that is around 20 TB. But size does not matter, price per GB (including price for the connection hardware to your workplace) matter
30. 300.▲
    by morphle 3y ago

    Virtual Reality Before it Had That Name: https://www.youtube.com/watch?v=Y2AIDHjylMI