Barlows formula

Author: d | 2025-04-25

Mathematical rigor of the formula in context of barlow s formula; Comparison with other formulas in context of barlow s formula; Relationship to other physical laws in context of barlow s formula; Derivation of Barlow s Formula in context of barlow s formula; Reading: Assumptions behind the Formula in context of barlow s formula; score Reading: Applications of Barlow’s Formula in context of barlow’s formula; Interpretation of the formula’s coefficients in context of barlow’s formula; Numerical methods

Applications of Barlow's Formula in context of barlow's formula

#7 Not sure anybody knows how to apply "Barlow's law" to the design of a water bottle...googling got me:the first sentence of that link is "Barlow's law was an incorrect physical law proposed by Peter Barlow in 1825 to describe the ability of wires to conduct electricity."Can you elaborate for us on what "Barlow's law" means to you? Thread starter #8 well barlow has many laws one of them is the one you talked about and that is wrong the one that am asking for is in the following link this formula tries to relate the internal pressure with the wall thickness of pipes #9 Barlows law as normally understood, at least in terms of pipe, is to resist internal (or external) pressure over a reasonably long distance before end caps (probably at least 5D). I don't think filling bottles with tablets is what was envisaged. Sounds like some empirical testing needed to me. It might get you to an initial start point, but axial load, external load, and torsional load (screwing a cap on and off) will have much greater impact on thickness than internal pressure IMO.My motto: Learn something new every dayAlso: There's usually a good reason why everyone does it that way #10 yeah ... never knew hoop stress = pr/t was a "law".filling bottles with tablets ... how does that produce an internal pressure ?or are you tlaking about the bottle moulding process ?Quando Omni Flunkus Moritati #11 It seems like buckling would predominate - pill bottles have much thicker walls than soda bottles. #12 Sorry, my point should have read internal pressure only. Tubes are much less strong in external buckling or collapse than they are in resisting internal pressure. If you've every had a "value" bottle of pressurised drink which is relatively strong until

Barlow's Formula – Names and nicknames for Barlow's Formula

Is a completely automated procedure. In a matter of minutes, planetary images can be captured with more resolution than anything ever taken with even the best CCD cameras!Note: More specific imaging techniques for webcams are covered on the Webcam page, but most of the details below apply equally well to imaging with CCDs or webcams.Imaging the PlanetsIn addition to a telescope and CCD camera or webcam, it is necessary to have some means for magnifying the image on the imaging sensor. This is needed due to the very small apparent sizes of the planets. To capture sufficient detail, the disk of a planet must cover quite a few pixelson the chip.PlanetApparent Size at Best Visibility*Mercury7.5"Venus25"Mars25"Jupiter45"Saturn21"Uranus3.7"Neptune2.3"Pluto0.1"* Best visibility is opposition for planets outside Earth's orbit and greatest elongation for planets inside Earth's orbit.The most common accessories for amplifying the image are Barlows and eyepiece-projection adapters. If your telescope has a fairly long focal length (2000mm or more) a Barlow will probably be sufficient. The exceptions to this might be if you have a CCD with very large pixels (16-microns or more), or if you are seeking the most detail possible and have very good seeing conditions. For smaller (shorter-focal-length) telescopes, or for large-pixel CCDs, the usual method of magnification is eyepiece projection. By shooting through an eyepiece, more magnification is provided than a Barlow can give.Note: Most Barlows provide 2x magnification, but there are some high-quality 3x Barlows available as well. Also, products such as TeleVue's Powermates and Meade's TeleExtenders provide up to 5x magnification. These are also ideal for planetary imaging.How Much Power?What amount of magnification should be used when imaging the planets? Often, an image scale of about 0.25 arcseconds/pixel has been recommended. This should reveal the most detail possible under good seeing conditions without being too much magnification. However, in excellent seeing conditions, much higher image scales have been used with much success. A scale of 0.1 arcseconds/pixel might be a better recommendation for exceptional atmospheric conditions. The required focal length depends on the size of the pixels in your CCD camera. Below is a chart showing the necessary focal length to achieve a 0.25"/pixel scale and 0.1"/pixel scale with various common pixel sizes. Formulas are given as well.0.25"/pixel: Focal Length = Pixel Size * 8250.1"/pixel: Focal Length = Pixel Size * 2060Pixel SizeFocal Length (0.25")Focal Length (0.1")3.5 microns2900mm7200mm5.6 microns (typical webcam)4600mm11,500mm6.8 microns5600mm14,000mm7.4 microns6100mm15,200mm9 microns7400mm18,500mm13 microns10,800mm26,800mm16 microns13,200mm33,000mm18 microns14,800mm37,100mm20 microns16,500mm41,200mm24 microns19,800mm49,400mmIt should be clear that the best combination for planetary imaging would be a camera will small pixels (such as a webcam) and a telescope with a long inherent focal length and large aperture. The reason for having a long inherent focal length is to make the task of increasing the focal length easier. For example, achieving a focal length of 11,500mm with a scope having an inherent focal length of 2000mm requires a 5.75x magnification factor, greater than most Barlow lenses. However, a scope with a 4000mm focal length will require only a 3x Barlow, a standard accessory.

Derivation of Barlow's Formula in context of barlow's formula

Math formula makes the problem-solving process much easier. Therefore, our Math experts have prepared class 12 Maths formulas PDF for all important chapters. With the help of Maths formulas for class 12 PDF free download​ links, you can access the PDF file and download them on your smartphone to use anytime.The class 12 Maths formula sheet PDF can be used for multiple purposes, such as — revision and practice questions. Furthermore, it’s crucial to understand that the same formula sheet is helpful for competitive examinations such as JEE, CUET, and more.Class 12 Maths All Formulas Chapter Wise​Every single chapter of class 12 Maths has certain formulas you need to understand and remember to better solve the questions. In this section, you will find class 12 Maths formulas for all chapters — Continuity and Differentiability to Mensuration. These class 12 Maths all formulas​ are important to successfully solve challenging problems, so ensure you include them in your regular studies and revision. Class 12 Chapter Wise Formula Sr.No Class 12 Chapter Wise Formula 1 Continuity and Differentiability Formula 2 Application of Derivatives Formula 3 Integrals Formula 4 Applications of Integrals Formula 5 Three Dimensional Geometry Formula 6 Sets, Relations, Functions & Binary Operation Formula 7 Complex Number Formula 8 Quadratics Equations Formula 9 Sequence And Series Formula 10 Permutation and Combination Formula 11 Binomial Theorem Formula 12 Exponential and Logarithmic Series Formula 13 Trigonometric Functions Formula 14 Inverse Trigonometric Functions Formula 15 Solution and Triangles Formula 16 Cartesian Functions of Rectangular Coordinates Formula 17 The Straight Line Formula 18 Family of Lines Formula 19 Circles and Family of Circles Formula 20 Conic Section Formula 21 Frequency Tables Formula 22 Linear Programming Formula 23 Probability Formula 24 Vector Algebra Formula 25 Functions, Limits and Continuity Formula 26 Differentiation of Their Application Formula 27 Indefinite and Definite Integral Formula 28 Differential Equations Formula 29 Matrices and Determinants Formula 30 Mensuration Formula 1. Continuity and Differentiability FormulasThis topic includes rules or formulas for checking continuity and differentiability, along with derivatives of functions like logarithmic, exponential, and trigonometric functions. With the help of the class 12. Mathematical rigor of the formula in context of barlow s formula; Comparison with other formulas in context of barlow s formula; Relationship to other physical laws in context of barlow s formula; Derivation of Barlow s Formula in context of barlow s formula; Reading: Assumptions behind the Formula in context of barlow s formula; score Reading: Applications of Barlow’s Formula in context of barlow’s formula; Interpretation of the formula’s coefficients in context of barlow’s formula; Numerical methods

Derivation of Barlow s Formula in context of barlow s formula

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Barlow's Formula - easycalculation.com

Skip to main content Eng-Tips is the largest engineering community on the Internet Intelligent Work Forums for Engineering Professionals Congratulations LittleInch on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go! Home Forums People Mechanical Engineers Mechanical engineering general discussion You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Barlow's law applications Thread starter laithrahim Start date Feb 12, 2014 Status Not open for further replies. #1 i am new to barlow's law, we are trying to determine the min wall thickness of HDPE bottle utilizing Barlow's law we would like to hear your comments on such approach is it valid to use such equation to our purpose also we would like to know what does design stress mean in barlow's law and how can we calculate it or obtain it thanks a lot Replies continue below Recommended for you #2 Thread starter #3 actually this document that highlighted barlows law for me but do you have any info concerning the design stress thanks a lot #4 design stress considerations at #5 The document from robyeng is very useful and should give you sufficient pointers.Your key consideration is how long do you want the item to last / be under pressure or stress of any sort and what temperature are you going to operate it at.Then use the graphs and data from the stress graphs listed in the document.My motto: Learn something new every dayAlso: There's usually a good reason why everyone does it that way Thread starter #6 thanks a lot littleInch do you think Barlow's law is applicaple to determine the thickness of bottles which is intended to carry tablets or capsules

Barlow's Formula for Pipe Formula - formuladen.com

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