3D Mathematical Objects

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  Figure-8 Immersion of Klein Bottle
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  Möbius Strip (see also the page Möbius Strip)
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  A shaded sphere
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  ${\displaystyle \cos \left(x^{2}+y^{2}\right)}$
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  ${\displaystyle \sin \left({\sqrt {x^{2}+y^{2}}}\right)}$
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  ${\displaystyle -\sin \left({\sqrt {x^{2}+y^{2}}}\right)}$
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  Square Law Spheres (r=1,4,9,16)
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  Cylinder Function
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  Fourier Transform of Cylinder Function
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  ${\displaystyle x\sin \left(y\right)}$
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  ${\displaystyle r\sin \left(\theta \right)}$

2D Mathematical Plots and Diagrams

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  ${\displaystyle y={\sqrt {|x|}}+1}$
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  A cross-section of a cone of one steradian
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  Three lines with different gradients
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  The four kinds of extrema
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  A narrow plot of ${\displaystyle x^{3}}$
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  How to (and how not to) classify an extremum by testing nearby points
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  Inductor with B-field
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  Jordan's Lemma
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  Contour used to find Fresnel Integral limits
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  Unnormalised Fresnel Integrals
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  Normalised Fresnel Integrals
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  Cornu Spiral
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  x^3 Periodic on (-pi, pi)
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  Fourier Approximation of x^3 periodic on (-pi, pi)
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  Airy Functions Ai(x) and Bi(x)
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  Error function
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  Complementary error function
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  Generalised Error Functions
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  Dawson + Function
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  Dawson - Function
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  Spherical Bessel j Function
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  Spherical Bessel y Function
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  Bessel K Functions
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  Bessel I Functions
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  Bessel Y Functions
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  Bessel J Functions
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  FM Message and Carrier
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  FM Modulated Signal and Message
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  FM Modulated Signal

Astronomy

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  Map of Stars within 14 light-years

Electronics

Binary Codes (Gray, etc)

Binary-Reflected Gray Coding Mask	Natural Binary Coding Mask
See also US Patent 2632058 (Frank Gray)

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  Oscilloscope Structure

Physics

At the moment (Oct 2007) the next three SVGs do not render correctly, as they use the Inkscape blur feature which is not supported. However, hopefully it will be soon.

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  Alpha decay
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  Beta-minus decay
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  Gamma decay
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  EM Spectrum

Sounds

Gears

Polarisation

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  Linear Polarisation
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  Circular Polarisation
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  Elliptical Polarisation

Computational Geometry

Diffraction

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  Diffraction Through a Pinhole
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  Diffraction Through a Slit
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  Two-Slit Diffraction (Central Maximum Animation)
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  Two-Slit Diffraction (Central 5 Maxima)

Density Plots

These density plots are highly detailed and need to be veiwed at full resolution for best effect. The images here are half-size. The wavlegnth is 800nm, and the slit separation is 0.1mm.

Two Slits

The wave near the slits (0.15mm across by 0.075mm high). This is looking down at the the wave at t=0.

This the same area, but averaged over a full cycle, to reveal the finging pattern

Further out (200mm across by 5 metres high). There are a lot of distortion and false patterns due to moiré and beat frequencies between the wave's frequency and the pixel/sampling frequency of the image/plotting.

Averaging over a full cycle reveals the simple fringe structure:

Three Slits

Logos and Coats of Arms, etc

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  Lion Rampant
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  Arzew, Algeria
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  US Coast Guard Parade Flag
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  Bochum
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  Bronnitsy
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  Turkmenistan
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  Krasnogorsk
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  Lobnya (1994)

Aviation

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  A-5 Vigilante
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  B-52 Stratofortress
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  Beechcraft T-34C Top
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  Beechcraft T-34C Side
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  Beechcraft T-34C Front
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  SR71 J58 Engine Airflow
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  Landing gear

Other stuff

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  ISO/UST Thread Dimensions

Integrated Circuits

Data Storage Devices

Batteries

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  AA Battery
• AAA Battery
  AAA Battery

Connectors

Photography

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  "God, our Father, on the Rainbow". Fountain in Nacka Strand, Sweden by Carl Milles.
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  Daisy Seed Parachute (Please tell me if you know the scientific name)
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  Hitachi Travelstar PCB
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  AM Receiver built on Stripboard
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  AM Receiver built on Stripboard (Reverse)

Anaglyphs

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  Wire reel

Resources

• Misc. Information Boxes
• Icons
• Mathematical Plots
• IC Carriers
• MATLAB Jet Colours