97 Matching Annotations
  1. Jul 2025
  2. Feb 2025
    1. Begun, George M. “Making Your Own Punched Cards.” Journal of Chemical Education 32, no. 6 (June 1, 1955): 328. https://doi.org/10.1021/ed032p328.

      George Begun used a template of "heavy galvanized iron" to drill holes into his 5 x 8" index cards to create his own edge-noted card system for use in his chemistry work. Rather than using commercially made sorting needles, he recommended the use of a ice pick with a dulled point "for safety".

  3. Dec 2023
  4. Aug 2023
  5. Jun 2023
  6. May 2023
    1. For $1,900.00 ?

      reply to rogerscrafford at tk

      Fine furniture comes at a fine price. 🗃️🤩 I suspect that it won't sell for quite a while and one could potentially make an offer at a fraction of that to take it off their hands. It might bear considering that if one had a practice large enough to fill half or more, then that price probably wouldn't seem too steep for the long term security and value of the contents.

      On a price per card of storage for some of the cheaper cardboard or metal boxes you're going to pay about $0.02-0.03 per card, but you'd need about 14 of those to equal this and those aren't always easy to stack and access regularly. With this, even at the full $1,900, you're looking at storage costs of $0.10/card, but you've got a lot more ease of use which will save you a lot of time and headache as more than adequate compensation, particularly if you're regularly using the approximately 20,400 index cards it would hold. Not everyone has the same esthetic, but I suspect that most would find that this will look a lot nicer in your office than 14 cheap cardboard boxes. That many index cards even at discount rates are going to cost you about $825 just in cards much less beautiful, convenient, and highly usable storage.

      Even for some of the more prolific zettelkasten users, this sort of storage is about 20 years of use and if you compare it with $96/year for Notion or $130/year for Evernote, you're probably on par for cost either way, but at least with the wooden option, you don't have to worry about your note storage provider going out of business a few years down the line. Even if you go the "free" Obsidian route, with computers/storage/backups over time, you're probably not going to come out ahead in the long run. It's not all apples to apples comparison and there are differences in some of the affordances, but on balance and put into some perspective, it's probably not the steep investment it may seem.

      And as an added bonus, while you're slowly filling up drawers, as a writer you might appreciate the slowly decreasing wine/whiskey bottle storage over time? A 5 x 8 drawer ought to fit three bottles of wine or as many fifths of Scotch. It'll definitely accommodate a couple of magnums of Jack Daniels. 🥃🍸🍷My experience also tells me that an old fashioned glass can make a convenient following block in card index boxes.

      A crystal old fashioned glass serves as a following block to some index cards and card dividers in a Shaw-Walker card index box (zettelkasten). On the table next to the index are a fifth of Scotch (Glenmorangie) and a bowl of lemons.

  7. Apr 2023
    1. stout

      As in sturdy: able to withstand hardship, strain, or exposure 穩固的 ; As in stocky: being compact and broad in build and often short in stature 粗壯的 ; As in valiant: feeling or displaying no fear by temperament 勇敢的 ; As in solid: not showing weakness or uncertainty 堅定的、堅固的、堅強的

  8. Mar 2023
  9. Jan 2023
    1. About twenty thousand of those cards are 3 × 5 inches and seven thousand 5 × 8 inches.

      Goitein's zettelkasten is comprised of about 20,000 3 x 5" index cards and 7,000 5 x 8" index cards.

      Link to: https://hypothes.is/a/TEiQ5H1rEe2_Amfzi4XXmg

      While not directly confirmed (yet), due to the seeming correspondence of the number of cards and their corpus descriptions, it's likely that the 20,000 3 x 5" cards were his notes covering individual topics while the 7,000 5 x 8" cards were his notes and descriptions of a single fragment from the Cairo Geniza.

  10. Sep 2022
    1. Posted byu/jackbaty4 hours agoCard sizes .t3_xib133._2FCtq-QzlfuN-SwVMUZMM3 { --postTitle-VisitedLinkColor: #9b9b9b; --postTitleLink-VisitedLinkColor: #9b9b9b; --postBodyLink-VisitedLinkColor: #989898; } I've been on-again/off-again with paper for PKM, but one thing remains consistent each time: I don't enjoy using 4x6 index cards. I much prefer 3x5-inch cards. I realize that it's irrational, but there it is.My question is if I dive into building an antinet, will I regret using 3x5 cards? I already have hundreds of them. I have dividers, holders, and storage boxes for them. I just prefer how they _feel_, as weird as that sounds.I'd like to hear if people are using 3x5 cards successfully or if you've come to regret it.

      While it may be slightly more difficult to find larger metal/wood cases for the 4x6 or 5x8 cards, it's a minor nuisance and anyone who wants them will eventually find the right thing for them. Beyond this, choose the card size that feels right to you.

      If you don't have an idea of what you need or like, try things out for 10-20 cards and see how it works for you, your handwriting size, and general needs. People have been using 3x5, 4x6, and even larger for hundreds of years without complaining about any major issues. If Carl Linnaeus managed to be okay with 3x5, which he hand cut by the way, I suspect you'll manage too.

      Of course I won't mention to the Americans the cleverness of the A6, A5, A4 paper standards which allows you to fold the larger sizes in half to get the exact next smaller size down. Then you might get the benefit of the smaller size as well as the larger which could be folded into your collection of smaller cards, you just have to watch out for accidentally wrapping ("taco-ing") a smaller card inside of a larger one and losing it. I suppose you could hand cut your own 5" x 6" larger cards to do this if you found that you occasionally needed them.

      For the pocketbook conscious, 3x5 does have the benefit of lower cost as well as many more options and flexibility than larger sizes.

      At least commercial card sizes are now largely standardized, so you don't have deal with changing sizes the way Roland Barthes did over his lifetime.

      My personal experience and a long history of so many manuals on the topic saying "cards of the same size" indicates that you assuredly won't have fun mixing different sized slips together. I personally use 3x5" cards in a waste book sense, but my main/permanent collection is in 4x6" format. Sometimes I think I should have done 3 x 5, but it's more like jealousy than regret, particularly when it comes to the potential of a restored fine furniture card catalog. But then again...

  11. Jul 2019
  12. May 2019
    1. The activities ofβ-xylosidase, xylan acetylesterase and arbinofuranosidase were measured using 1 mM p-nitrophenylxylopyranoside, p-nitrophenylacetate and p-nitrophenylarabinofuranoside, respectively prepared in sodium citrate buffer (0.1 M, pH 7.0). One mL of reaction mixture containing 0.2 mL of crude enzyme solution, 0.3 mL of sodium citrate buffer (0.1 M, pH 7.0) and 0.5 mL of substrate was incubated at 80 °C for 30 min. The reaction was terminated by adding 2 mL sodium carbonate-bicarbonate buffer (1.0 M, pH 10.0). The activities were determined using p-nitrophenol standard curve (1-10 μg mL-1) drawn using absorbance values measured in spectrophotometer at 400 nm. One unit of the enzyme is defined as the amount of enzyme that liberates 1μmole of p-nitrophenol mL-1min-1 under assay conditions.
    1. ThecircadianrhythmofbimodalO2uptakeofcontrolandeffluenttreatedfisheswerestudiedseparatelyat28°±1°C.TheamountsofO2extractedfromwaterandairwereseparatelydeterminedforadayatregularintervalsof3hreach.TotalO2uptakeateachtimewasobtainedbysummingupthevaluesforaquaticandaerialrespirationobtainedatthecorrespondingtime.Throughoutthepresentstudy,theinitialO2contentofthewaterwaskeptconstant(6±0.5mgF1)
  13. Sep 2018
  14. Aug 2018
    1. The northern German city intends to increase the quality of top-down initiatives, boosting economic growth and reducing the burden of bureaucracy. Within the course of the project, Hamburg will gather citizen input on such topics as the most popular locations for new playgrounds, as well as the most desirable positions for the planting of new trees in public zones. Citizen’s choice for a tree or playground location made in a map should be automatically supported by the systems feedback function, where the citizen will get information about his or her choice based on the data provided by the system. The data (all available as open data on the transparency portal) for the feedback are, for example, noise mapping, solar potential mapping, current tree population, buildings, legally binding land-use plan, and cadastral parcels for the tree as well as green space, land-use zoning, existing playground locations, public transport network and stations, administrative units, inhabitants per unit for the playground location.

      Smarticipate

    1. Berlin: Invest in a city with a bright future Do you plan to invest in Berlin, start a company here, or relocate your headquarters here? Smart move! Your company can also benefit from the excellent local conditions in the German capital. The Berlin economic development corporation, Berlin Partner for Business and Technology, will support you while your company transfers to the new location, providing help with enterprise development and the transfer of technology with tailored service packages. Berlin Partner's experts can provide you with comprehensive and free advice about Berlin at the Business Location Center.

      Business Location Centre

    1. The waste management strategy adopted by the Berlin House of Representatives for the period 2010 to 2020 also provides for an extension of the annual waste audits to provide a comprehensive report on material flows, and climate and environmental impacts for non­hazardous waste, in order to improve the control and evaluation of waste material flows. Therefore the Senate Environment Department, partially financed through the “Climate Protection – Sector strategies” programme of the Federal Ministry of the Environment, commissioned the IFEU Institute Heidelberg and the ICU Berlin to develop a plan for the im­plementation of exemplary, climate-friendly waste management measures for Land Berlin.

      Waste Management Audit

    2. The public acquisition system can play an important role in a modern closed-cycle econo­my. Every year, official bodies in the city, from the city and district administrations to the public corporations, statutory bodies and public-law foundations purchase products and services costing some EUR 4 to 5 billion. When placing orders, a considerable contribution can be made to environmental protection by giving preference to environmentally-friendly products and materials and to processes which reduce the impact on the environment. In this way it is not only possible to conserve resources such as energy and water, but also to prevent threats to health and the environment.

      Administrative Regulations - Waste Management

    1. BürgerBautStadt makes it easier for citizens to participate in construction projects and planning approval procedures. For this purpose, the authors have collected data from various sources and made available on the website as a map, list or e-mail notification. BürgerBautStadt was launched at the ideas competition Stadt Land <Code> of the Open Knowledge Foundation Germany and was supported until May 2013 with a scholarship in the implementation.

      Burger baut Stadt - Citizen Participation Application

    1. The tourism app CultiMapp opens up new possibilities to explore Berlin by linking and enriching the Berlin 3D city model with cultural information. The integrated 3D viewer allows you to fly over interesting buildings near your own location. In the future, historical photographs and detailed shots will also be integrated into the viewer to make Berlin's cultural heritage visible.

      CultiMapp

    1. naturtrip.org is the first public transport information where you do not have to know the destination. After all, when it comes to excursions, one usually does not know exactly where one wants to go, but only what one plans to do. Namely eat delicious, relax in the spa, dozing or paddling in the sun. Therefore one searches with naturtrip.org from A for "Strandbad" or "Kanuverleih". And how long you want to be on the road. 30 minutes, 60 minutes or more. Then you get on the map exactly the destinations shown, which can be reached from your own location in 30 min or 60 min currently by train, bus or bike. 

      Nature Trip - Public Transport Information Berlin

    1. How often are streets cleaned in Berlin? With the interactive map application street cleaning in Berlin, the cleaning frequency per week can be called up for each street in the Berlin city area. Additional information can be retrieved simply by clicking on the respective street - What is being cleaned? - Who is responsible and how high are the fees for the residents. The app can be used in any web browser on any device. The application is based on the geodata from the street cleaning directory of the Berliner Stadtreinigung (BSR) and is operated via the mapping platform ArcGIS Online .

      Street Cleaning - Berlin

  15. Nov 2017