Fourmilab[B!]新着記事・評価 - はてなブックマーク

『Fourmilab』

Mind Grenade
3 users
www.fourmilab.ch

Origin One should be considered lucky if, during their life, they encounter a “wild talent”. These are people who spin off original ideas faster than others can write them down, undertake challenges few others would imagine, no less attempt, and make you feel exhausted yet exhilirated just trying to keep up. The first such person I met in my life was Harry S. Pyle, who was a classmate of mine in e
- テクノロジー
- 2021/11/01 10:20

The Autodesk File
3 users
www.fourmilab.ch

Bits of History, Words of Experience Edited by John Walker Frames edition of this document. Other editions, some suitable for reading offline.
- 暮らし
- 2014/05/16 22:11
Sketch of The Analytical Engine
3 users
www.fourmilab.ch

Sketch of Invented by Charles Babbage By L. F. MENABREA of Turin, Officer of the Military Engineers from the Bibliothèque Universelle de Genève, October, 1842, No. 82 With notes upon the Memoir by the Translator ADA AUGUSTA, COUNTESS OF LOVELACE Those labours which belong to the various branches of the mathematical sciences, although on first consideration they seem to be the exclusive province of
- 学び
- 2010/12/27 16:04
Colour Rendering of Spectra
3 users
www.fourmilab.ch

Colour Rendering of Spectra by John Walker 25th April 1996 Most computer applications specify colour in three-component systems such as RGB, HLS, or HSV. Derived from the mechanisms of human colour perception, these colour spaces map relatively straightforwardly onto display and printing technologies. While human colour perception is well modeled by such systems, the physical interaction of light
- 世の中
- 2010/03/11 15:15
ART OF MONEY GETTING
4 users
www.fourmilab.ch

ART OF MONEY GETTING or, Golden Rules for Making Money by P. T. Barnum 1880
- 政治と経済
- 2008/09/21 18:47
- 金融
Fourmilab
7 users
www.fourmilab.ch

<body> This document requires frames, which your browser does not appear to support. Please visit our <a href="/nav/topics/map.html" target="_top">no-frames table of contents</a>. </body>
- 学び
- 2007/03/25 19:53
- 英語
- science
Earth View
4 users
www.fourmilab.ch

View from Sun: 150310929 km above 11°49'N 38°13'W Click in image to pan or here to zoom in. Earth imagery derived from the NASA Blue Marble Terra/MODIS cloudless Earth and Black Marble night lights images. Display: Map, From Sun, From Moon, Night side Lat: Long: Alt: km Choose satellite Image: Blue Marble Monthlies NASA Blue Marble Living Earth® NASA Visible Earth Topographic maps: NOAA/NCEI ETOPO
- 学び
- 2007/02/08 10:49
- 宇宙
Request HotBits (Legacy Insecure Server)
8 users
www.fourmilab.ch

Hexadecimal (sample) Binary download to a file C language constant declaration (sample) XML (sample) JSON (sample) As of the end of 2022, the HotBits Radioactive Random Number Generator service has been retired. Please see the “HotBits Radioactive Generator Retired” page for additional information. You can request random data from the secondary on-chip random source using your API key with “R” as
- テクノロジー
- 2007/01/31 01:04
- algorithm
HotBits API Key Error
3 users
www.fourmilab.ch

No HotBits API Key specified. See the API Key documentation for details. Back to HotBits
- テクノロジー
- 2007/01/30 10:55
Request HotBits (Secure Server)
3 users
www.fourmilab.ch

This page requests HotBits using the HTTPS protocol to encrypt the request for HotBits and the random data returned to you. This reduces the risk of your request being diverted to another site (because the request is encrypted with Fourmilab's certificate), and/or the random data being intercepted on its way to you. As of the end of 2022, the HotBits Radioactive Random Number Generator service has
- テクノロジー
- 2007/01/30 05:53
- Security
- webサービス
HotBits: Genuine Random Numbers
9 users
www.fourmilab.ch

Genuine random numbers, generated by radioactive decay Retirement Announcement Since May 1996, Fourmilab has made HotBits available for free on the Web to all who wanted them, subject only to a daily quota to avoid exhausting the limited capacity of the generator mechines and, later, an API key to defend the site against the denial of service attacks any resource on the Web inevitably attracts. Mi
- テクノロジー
- 2007/01/30 05:13
- 乱数
- 統計
- it
View from Satellite
4 users
www.fourmilab.ch

To view the Earth as currently seen from a satellite in Earth orbit, choose the satellite from the list below and press the “View Earth from Satellite” button. The satellite database is updated regularly but may not reflect the current position of satellites which maneuver frequently after reaching orbit. Satellite: Orbital elements as of 2022 Feb 11 08:06:35 UTC Expert users only: To view the Ear
- エンタメ
- 2006/11/05 11:24
- サイエンス
- imported
Earth View
3 users
www.fourmilab.ch

View from Sun: 151297557 km above 11°37'N 109°18'E Click in image to pan or here to zoom in. Earth imagery derived from the NASA Blue Marble Terra/MODIS cloudless Earth and Black Marble night lights images. Display: Map, From Sun, From Moon, Night side Lat: Long: Alt: km Choose satellite Image: Blue Marble Monthlies NASA Blue Marble Living Earth® NASA Visible Earth Topographic maps: NOAA/NCEI ETOP
- 学び
- 2006/02/11 01:04
- photo
Earth and Moon Viewer
3 users
www.fourmilab.ch

Earth and Moon Viewer and Solar System Explorer Welcome to Earth and Moon Viewer and Solar System Explorer. Viewing the Earth You can view either a map of the Earth showing the day and night regions at this moment, or view the Earth from the Sun, the Moon, the night side of the Earth, above any location on the planet specified by latitude, longitude and altitude, from a satellite in Earth orbit, o
- 学び
- 2006/02/10 14:40
Fractal Food
10 users
www.fourmilab.ch

Nearly exact self-similar fractal forms occur do in nature, but I'd never seen such a beautiful and perfect example until, some time after moving to Switzerland, I came across a chou Romanesco like the one above in a grocery store. This is so visually stunning an object that on first encounter it's hard to imagine you're looking at a garden vegetable rather than an alien artefact created with mole
- 暮らし
- 2005/10/18 06:25
- science
- design
ART OF MONEY GETTING
3 users
www.fourmilab.ch

ART OF MONEY GETTING or, Golden Rules for Making Money by P. T. Barnum 1880
- テクノロジー
- 2005/09/29 02:51
- マーケティング
JavaScrypt: Browser-Based Cryptography Tools
8 users
www.fourmilab.ch

Welcome to JavaScrypt, the high-security data encryption solution which runs entirely in your Web browser. To use the page, your browser must support JavaScript and you must not have disabled execution of that language. Let's see… If the box above says “Your browser supports JavaScript”, you're in business. JavaScrypt runs entirely in your browser—nothing is sent to any Web site when you use it. Y
- 暮らし
- 2005/06/01 16:21

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