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dcarch

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Posts posted by dcarch

  1. 33 minutes ago, MokaPot said:

    but if I'm taking a photo of a building that is symmetrical, I can see that the approach looks skewed.

     

    In order not to have skewed picture of a building, you will need a parallax correction lens, or in the old days, a view camera with a bellow.

    Something like this for a SLR camera:

    https://www.ebay.com/itm/274523030543?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=274523030543&targetid=1068323853030&device=c&mktype=pla&googleloc=9004223&poi=&campaignid=10459842387&mkgroupid=104612011100&rlsatarget=pla-1068323853030&abcId=2146002&merchantid=102008904&gclid=Cj0KCQiAv6yCBhCLARIsABqJTjbibJPL2LK4D3NXdzPvR0wonWpUErUREnTKKQ_NCi3OB6XUhtEk0p4aAsNkEALw_wcB

     

    dcarch

    • Like 1
    • Thanks 1
  2. 30 minutes ago, JoNorvelleWalker said:

    I could, and probably will, put higher wattage bulbs in the dining room.  (Which of course may trip the breaker.)

     

    You can also check out remote rechargeable strobe flashes. Some expensive, some not. Great for background lighting. They give you lighting flexibility and they don't take lots of room to store.

     

    dcarch

    • Thanks 2
  3. Easy-off has many chemicals in its composition. Many ALL of its ingredients are toxic to humans. One main ingredient is Sodium Hydroxide, it is highly reactive (corrosive) on aluminum. Sodium hydroxide can also damage glass and a few other metals at higher temperature.

     

    dcarch

     

    Edited to say All those chemicals are toxic to humans.

  4. 14 minutes ago, palo said:

    Not to be picky but which factory and for how long? The pandemic has certainly affected supply chains but consumer goods are still available.

     

    p

     

    https://www.cnbc.com/2021/03/03/gm-extends-plant-shutdowns-due-to-global-semiconductor-chip-shortage.html

     

    https://www.theverge.com/2020/3/18/21185015/honda-coronavirus-factory-shut-down-fiat-chrysler-ford-gm

     

    Disruptions to manufacturing due to the pandemic is worldwide for all industries, not limited to the automobile sector.

     

    dcarch

  5. All I can say is that you guys have done an amazing job is getting this gadget to market, overcoming many technical limitations.

     

    Things like using the chicken or roast beef as part of the transmitting antenna, when all I can think of is antennas need to be proportional to wave length. or fractional to wave length. 

     

    Be careful,  don't sell your device to me. If I get one, the first thing I do is to cut it open to find out how you guys did it. LOL!!!

     

    dcarch

    • Like 2
  6. 7 hours ago, ChefChrisYoung said:

    Speaking of battery life, the probe is quite a challenge. We use a somewhat exotic rechargeable chemistry that has the very nice properties of handling very high temperatures and not doing anything unpleasant if it does get too hot. The downside is the energy density it really low—like terrible. To get the probe a lot thinner, we had to go with an absurdly *tiny* battery. This gives us a few mAh of power in the probe, so to get 24+ hours out of the battery we just have to be somewhat clever with how we power up the sensors, process the measurements, write it to memory, and transmit it over Bluetooth. The probe has no WiFi simply because the power requirements are much too high.

     

    What about battery life? Most chemistry batteries have limited charge cycles, and most batteries cannot be "deep cycled" before being permanently damaged.

     

    Actually some probe sensors (bi-metal) do generate a very tiny bit of electric power from heat. Probably too little to recharge the battery.

     

    Wonder if supercapacitor technology can be considered:

     

    "----A supercapacitor (SC), also called an ultracapacitor, is a high-capacity capacitor with a capacitance value much higher than other capacitors, but with lower voltage limits, that bridges the gap between electrolytic capacitors and rechargeable batteries. It typically stores 10 to 100 times more energy per unit volume or mass than electrolytic capacitors, can accept and deliver charge much faster than batteries, and tolerates many more charge and discharge cycles than rechargeable batteries.[2]----"

     

    dcarch

  7. 4 hours ago, Shelby said:

    Ok all you smart gardeners.  Ronnie wants to put a grow light in the greenhouse.  I need something not very expensive, not super extensive...just a plain ole light.  Suggestions?

     

    Is a $10 solution too expensive for you? :D If not, take a look what I have done for my greenhouse. Just an alternate idea.

    $5.00 so called "space blanket" reflective plastic sheet.

    $2.00 fishing line.

    $3.00 paper clips.

     

    A reflective curtain that you can open/close easily for watering/harvesting, which can double the sunlight you get.

    BTW, Those turnbuckles etc in the picture are not related to the curtain system. They are my "invisible heavy duty" steel shelve support system.

     

    dcarch

    1762287686_greenhouse2021.thumb.JPG.9a26516e940c412d3fed7faad055f50b.JPG

     

    1237095294_greenhouse2021a.thumb.jpg.dcb22c8d604d68139f18c04d795dd662.jpg

     

    443873253_greenhouse2021b.thumb.jpg.efe1fb30cee3a004efab9bf89d923111.jpg

    • Like 4
    • Thanks 2
  8. liuzhou  recently did a very nice post about Chinese sand pots for cooking. It inspired me to dig out my sand pot and made a dish.

     

    I figured that sand pots are made with mud, so I used all vegetables harvested from mud, beets, carrots, daicon and peanuts.

     

    dcarch

     

    Braised Pork butt

    3299362_claypotpork.thumb.JPG.c9ecfa6e1d2183d955e23ee00d0b543d.JPG

     

    866521796_claypotpork2.thumb.jpg.56b4adc8c6af340027f6aede57c626fd.jpg

     

    • Like 16
    • Delicious 1
  9. Static measurement can be unreliable because thermal conductivity thru meat can be variable depends on:

     

    1. Moisture contain in different areas.

    2, fat layers have different conductivity.

    3. measured parallel to fiber

    4. measured perpendicular to fiber,

    5. how close to bones.

    6. Is the saltiness of the meat evenly distributed? 

     

    To me, It seems poking around with a thermometer yourself can give a better idea.

     

     dcarch

  10. On 2/28/2021 at 3:07 AM, adey73 said:

    https://combustion.inc

     

    Anyone got thoughts on this?

     

    I have not studied this device thoroughly just a few casual comments:

     

    1. I don't like any "smart" device that tells me how to perform simple tasks.

     

    2. I am not sure how this can be accurate in measuring temperature. Metal conducts heat much faster then meat. Inserting a metal pin into meat will change the meat temperature around the metal. In physics, that is called "The Observer Effect". The act of observing changes the condition of the object you are trying to observe.

     

    3. I am not sure there is a battery inside the pin. Batteries do not last long, especially in heat. Possibly it uses a super capacitor for energy storage. Capacitors do not use chemical changes to store power.

     

    4. This device may not work inside a pressure cooker. The construction of a pressure cooker is similar to what is known as a "Faraday cage". In any case, there is never a need to measure food inside a PC. Food inside a PC will only cook food at one temperature.

     

    dcarch

     

    • Like 2
  11. 1 minute ago, liuzhou said:

     

     I have an irrational attachment to them.

     

    That's very nice. I believe in friendship with the world. I believe in not throwing out items just because they are no longer "presentable".

     

    Thanks!

     

    dcarch

    • Like 3
  12. 26 minutes ago, liuzhou said:

    Pork tenderloin steak over garlicky lentils with sugar snap peas.

     

    20210301_191435.thumb.jpg.28d28837b16c84121797c6ed69335092.jpg

     

    Looks like a very satisfying dinner.

    What's the story about that fork?

     

    dcarch

  13. On 2/25/2021 at 10:50 AM, TicTac said:

    The itch continues - plotting my layout this year - thought I would share

    one new wintering girl and one old stalwart - curry leaf & bay leaf - enjoying the southern exposure and heat vent by the front door...

    EE0E02EB-164C-43EB-BB53-81FDA89D5205.thumb.jpeg.a858c5eef00c8449f34041e53f3588cf.jpeg

    Cathy curry leaf was shipped as a single twig with maybe 10 leaves to her measly stalk, she has surprised and rebounded quite nicely 

     

     

    Looks like Toona sinensis. 

    Toona sinensis tree leaves are edible.

    I am trying to grow a few in my garden.

     

    dcarch

  14. 1 hour ago, MommyDragonsDen said:

     King Prawn Lantern Salad with Thail Style Dip Sauce (mint,coriander,lemon,peanuts,chilli, fish oil...etc)

    A little festival dish for lantern festival this week

     

    Screenshot_20210208_101757.thumb.jpg.a64a78733ee9a4300d62381d20c84dc3.jpgScreenshot_20210208_103932.thumb.jpg.4e683d619b1842bc58aa2c1366df6baa.jpg

    Screenshot_20210208_103920.thumb.jpg.62959180fb567819bfb3dd79e42708f1.jpg

    Screenshot_20210208_104107.thumb.jpg.f778846047c046d9652cd72272a9487e.jpg

     

    Screenshot_20210208_104045.jpg

     

    Welcome to the Forum. Totally impressed by your cooking on youtube 

     

    dcarch

  15. 8 minutes ago, ElsieD said:

    I'm wondering why you would want to put anything under your pots when cooking unless it's to collect splatter.

     

    Splatter and boil over happen in my kitchen everyday.

    I multi-task.

    I set the cooktop at high power, then run to the workshop to work on a project, ------ and the phone rings ----- and a friend rings the doorbell. Not only that I need to prevent splatter, I also have a cover taped permanently to the smoke detector :D!

     

    dcarch

    • Like 1
  16. Another (late) Valentine dish for a non-meat eater. Also to celebrate Ash Wednesday, and Canjun shrimps for Fat Tuesday.

     

    dcarch

     

    308186203_tofuvalentine2021a.thumb.jpg.c3fdf3266b2db96a7bb2fffb9a545a3d.jpg

     

    795780052_tofuvalentine2021.thumb.JPG.70ec27e99ba623aae5639fef2507d765.JPG

    • Like 13
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  17. 3 hours ago, Shelby said:

    That's just beautiful @dcarch.

    Thanks!

    My "farm to mouth" setup. No sanitizing needed..

     

    2 hours ago, KennethT said:

    The photos are a bit chopped up - would it be too much trouble to ask for a photo of the tomato plant?  How are you trellising it?  What variety is it?  Is it a dwarf?

     

    That happens to be a volunteer tomato plant. I have no idea what it is. I never have grown dwarf tomatoes before. It seems to stay short. No staking. Relatively productive.  Nice flavor. I must have had 30 fruits already. There are at least another 15/20 on the vine.

     

    I just bought some dwarf seeds. Now that I know I can do well with tomatoes using my LED lights.

     

    dcarch1320141034_basementtomatoe2021b.thumb.jpg.a9259ac452c3888495633bd333ba129a.jpg

     

    1115642414_basementtomato2021.thumb.jpg.fed79693f4c23ad047f343e311bd04b8.jpg

     

    • Like 7
    • Thanks 1
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