Through the Microscope – ImageQuest

July 24, 2018

How do microbiologists see the world? What does a butterfly wing look like magnified 200 times? What is a Confocal Microscope? Britannica ImageQuest throws a new perspective on the mundane with our microscopy collection.

The following photos and images are a small sample from the Microscopy collection. Get access to the full collection plus millions of other rights-cleared educational images with a school-wide ImageQuest subscription.


Microscope image of the Lodran Meteorite

Lodran_meteorite
IMAGEQUEST: The Natural History Museum, London / Universal Images Group

This meteorite is the type specimen of the Lodranite meteorites. The Lodranites are related to the Acaplucoites but are more course-grained. Field of view is 2.5mm across.

Fluorescence micrograph of leaf hairs

Leaf_Hairs
IMAGEQUEST: HEITI PAVES/SCIENCE PHOTO LIBRARY / UIG

A fluorescence microscope is an optical microscope that uses fluorescence and phosphorescence instead of, or in addition to, reflection and absorption – as used by normal light microscopes.

Mycorrhiza in plant root cells

Mycorrhiza in plant root cells
IMAGEQUEST: De Agostini Picture Library/Universal Images Group

Mycorrhizza refers to an intimate and symbiotic association between the branched, tubular filaments (hyphae) of a fungus and the roots of higher plants. What can you notice about the cell walls in this image?

Coloured scanning electron micrograph (SEM) of the scales on a butterfly wing

Butterfly wing, SEM
IMAGEQUEST: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY / Universal Images Group

A butterfly wing is covered in many tiny scales. The scales are modified hairs made of chitin, a common substance in insect exoskeletons. The iridescence of the colours of a butterfly’s wings is produced by the diffraction of light by the microscopic structure of these scales.

Snail teeth at 1200x magnification (Scanning electron microscope)

IMAGEQUEST: Science Photo Library

Snails chiefly feed on plant material, but have you ever wondered how they shred and eat their food?

A composite confocal laser micrograph of freshwater green algae

Composite Image of Algae, confocal laser scanning micrograph
IMAGEQUEST: Science Photo Library

Confocal microscopy’s main feature is that only what is in focus is detected, and anything out of focus appears as black, making it particularly useful for studying the fine and three-dimensional structures of biological specimens. What differences can you notice between this image and the one of Mycorrhizza in plant root cells?

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