The My Delta Pi webstore
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The My Delta Pi webstore
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Microscopes for professional and hobby use - especially digital microscopes
Welcome to this online presentation of quality microscopes to be used for professional applications, education and hobby works. Please click on a link to learn more or to buy. You will also find many more microscopes and otical instruments to select from by clicking at the links than those here presented.
There are also all types of microscopy accessories, like object glasses, cleaning equipment and object preparation tools.
Please scroll down to read about some organisms you can see through a microdcope.
To see more microscopes, please click here or here
MICROSCOPES
- By clicking at any product link you get into as store where you can browse for
many more products
To find more advanced microscope models for scientific and hobby use - please click here
OTHER OPTICAL INSTRUMENTS FOR HOBBY USE AND THE PROFESSIONAL SCIENTIST
To find telescopes for hobby use and the professional scientist,
please click here.
To find binoculars and monoculars for day and night vision, binocular and
monocular cameras for day and night vision,
please click here.
HOBBY AND PROFESSIONAL EQUIPMENT OF MANY KINDS
A great general hoby store - also a lot of professional electronic equipment - By clicing at this banner you will find many helicopter and aircraft models, and also a lot of other articles, for example: Hobby chemistry equipment, hobby electronic equipment, professional electronic components, car models, boat models and metal detectors for hobby and professional use.
A very comprehensive store of RC models of all types
This is a great store of nitro driven aircraft
models.
Perhaps the biggest collection of RC model helicopters on
the net.
RC model racing offroad cars
Here you can see two of the many exciting hobby products
Comodities to use in your car - garage workshop tools
- By clicking at this banner, you will find a huge collection of commodities for your car or to bring with you on your journeys, like electronic equipment, luggage bags, security items, navigation units, workshop tools and a lot more. Also technical equipment.
Organisms you can see through a microscope
Ciliophora or Ciliates.
This is a phylum of monocellular organisms that have a lot of small hairs (Cilia) on the body. Those are either usd for movements of to catch foof into the mouth. The mouth is usaully a funnel-shaped opening some place on the body. The dhape of the organsims vary very much. They behave in a lot of ways. Sometimes they move by using the cilia. Sometimes they are fastened to some object by a foot. Sometimes they are makeing streams with the cilia that catch food into the mouth. The cells have a lot of structures you often can see. There is the mouth, the cilia, two cell kernels ( a big and a little), apulsateing vacuole. The vacuole is a bladder that fills and emoties steadily to take away weter that constantly diffuses into the body and to remove vaste.
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Heterotricha and Stentor roeselei The heterotrichs are a class of ciliates. They typically have a prominent adoral zone of membranelles circling the mouth, used in locomotion and feeding, and shorter cilia on the rest of the body. Many species are highly contractile, and are typically compressed or conical in form. These include some of the largest protozoa, such as Stentor and Spirostomum, as well as many brightly pigmented forms, such as certain Blepharisma. The Picture shows Stentor Roeseli, a spesies in this class. |
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Amoebozoa
The Amoebozoa are a
major group of amoeboid protozoa, including the majority that move by means of
internal cytoplasmic flow. Their pseudopodia are characteristically blunt and
finger-like, called lobopodia. Most are unicellular, and are common in soils and
aquatic habitats, with some found as symbiotes of other organisms, including
several pathogens. The Amoebozoa also include the slime moulds, multinucleate or
multicellular forms that produce spores and are usually visible to the unaided
eye.
Amoebozoa vary greatly in size. Many are only 10-20 μm in size, but they also
include many of the larger protozoa. The famous species Amoeba proteus may reach
800 μm in length, and partly on account of its size is often studied as a
representative cell. Multinucleate amoebae like Chaos and Pelomyxa may be
several millimetres in length, and some slime moulds cover several square feet.
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Amoeba proteus The Amoeba proteus is an
amoeba closely related to the giant amoebae. It belongs to the Rhizopoda,
more specifically to the Phylum Sarcodina. This large protozoan uses
tentacular protuberances called pseudopodia to move and phagocytosize
smaller unicellular organisms, which are enveloped inside the cell's
cytoplasm in a food vacuole, where they are slowly broken down by enzymes.
The Amoeba proteus possesses a nucleus containing granular chromatin, and is
therefore an eukaryote. |
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Dinoflagellata
The dinoflagella are a large group of flagellate protists. Most are marine plankton, but they are common in fresh water habitats as well; their populations are distributed depending on temperature, salinity, or depth. About half of all dinoflagellates are photosynthetic, and these make up the largest group of eukaryotic algae aside from the diatoms. Being primary producers make them an important part of the aquatic food chain. Some species, called zooxanthellae, are endosymbionts of marine animals and protozoa, and play an important part in the biology of coral reefs. Other dinoflagellates are colorless predators on other protozoa, and a few forms are parasitic (see for example Oodinium, Pfiesteria).
Dinoflaggelates have flagella. those are long extending tubes that can be moved in various ways and that they use to move themselves. Dinoflagellates also have cloroplasts with clorophyll, making them capable of photosyntestis, that is making complex molecules from CO2 and water with releasing of oxygen and by using energy from the sun rays.
Most dinoflagelates are
unicellular forms with two dissimilar flagella. One of these extends towards the
posterior, called the longitudinal flagellum, while the other forms a lateral
circle, called the transverse flagellum. In many forms these are set into
grooves, called the sulcus and cingulum. The transverse flagellum provides most
of the force propelling the cell, and often imparts to it a distinctive whirling
motion, which is what gives the name dinoflagellate refers to (Greek dinos,
whirling). The longitudinal acts mainly as the steering wheel, but providing
little propulsive force as well.
Dinoflagellates have a complex cell covering called an amphiesma, composed of
flattened vesicles, called alveoli. In some forms, these support overlapping
cellulose plates that make up a sort of armor called the theca. These come in
various shapes and arrangements, depending on the species and sometimes stage of
the dinoflagellate. Fibrous extrusomes are also found in many forms. Together
with various other structural and genetic details, this organization indicates a
close relationship between the dinoflagellates, Apicomplexa, and ciliates,
collectively referred to as the alveolates.
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Ceratium hirundinella - Dinoflagellate. |
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Rotifera
The rotifers make up a phylum of microscopic and near-microscopic pseudocoelomate animals. They were first described by John Harris in 1696 (Hudson and Gosse, 1886). Leeuwenhoek is mistakenly given credit for being the first to describe rotifers but Harris had produced sketches in 1703. Most rotifers are around 0.1-0.5 mm long, and are common in freshwater throughout the world with a few saltwater species. Rotifers may be free swimming and truly planktonic, others move by inchworming along the substrate whilst some are sessile, living inside tubes or gelatinous holdfasts. About 25 species are colonial (i.e. Sinantherina semibullata), either sessile or planktonic.
Rotifers get their
name (derived from Latin and meaning "wheel-bearer"; they have also been called
wheel animalcules) from the corona, which is composed of several ciliated tufts
around the mouth that in motion resemble a wheel. These create a current that
sweeps food into the mouth, where it is chewed up by a characteristic pharynx (mastax)
containing tiny jaws. It also pulls the animal, when unattached, through the
water. Most free-living forms have pairs of posterior toes to anchor themselves
while feeding. Rotifers have Bilateral symmetry Rotifers have a variety of
different shapes. There is a well-developed cuticle which may be thick and
rigid, giving the animal a box-like shape, or flexible, giving the animal a
worm-like shape; such rotifers are respectively called loricate and illoricate.
Like many other microscopic animals, adult rotifers frequently exhibit eutely -
they have a fixed number of cells within a species, usually on the order of one
thousand.
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Philodina - a rotifer |
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