Show us the merchandise or you’re going to lose another head, dude. Sometimes they’re friendly and sometimes they’re not. Screenwriters have come up with some pretty interesting behaviors for their extraterrestrials, but they often ignore some basic principles of biology. For example, in the film Alien , a human being plays host to a parasitic alien until it’s ready to be born. This has long bothered biologist Jack Cohen. Alien is not concerned with the biology. You can’t have a creature living in your chest which is bigger than your heart, and you don’t know it’s there, and your immune system isn’t turned on, particularly if it’s never seen a human being before. It doesn’t work biologically.
Table Bay at midnight. Sailing by the stars Modern astronomy in South Africa begins with ships — and their unfortunate habit of colliding with the South African coastline. In a French ship stopped briefly at the Cape so that Father Guy Tachard could set up a small temporary observatory. He and his assistants discovered that most of the stars shown on their charts of the extreme southern sky did not exist at the marked positions, while many others were omitted altogether.
The list of microscopes presented below is organized with respect to the country of origin and further with respect to the instrument maker. In dating the instruments presented on this website, use was made of whatever information happened to be available.
Jannel Cruisers started business in in the tiny part that was left of Shobnall Basin. The Hines family reopened the basin and in created a dry dock on the line of the Bond End Canal. The original lock entrance walls can be seen at the entrance to the dry dock. Below is a short history by Harry Hines: Use of the river Trent, which runs through the town, had been tried since Roman times but the further inland, the smaller the boats that could be used.
The winter flooding and shallows in the summer proved insurmountable, however cargo could be carried from the sea as far south as Wilden Ferry, where the river Derwent joins the river Trent and increases the quantity of water, then onwards by road. Hops, grain and malt were also carried to Burton via the river Trent. In the early s, improvements were made between Wilden Ferry and Burton to increase the depth of navigable water.
Cheese, ale and pottery moved downstream and iron and timber upstream to and from the wharves and warehouses built on the river Trent at Bond End, just south of Burton Abbey. Bond End was so-called after the area outside the Abbey walls where the bondsmen and serfs, who served the Abbey, lived. Burton was now said to be the inland port the furthest from the sea.
Canals were gaining favour. The Burton Boat Company, concerned at the loss of trade from their warehouses and wharves at Bond End, approached James Brindley, the engineer, to terminate the canal near Burton at Bond End.
Eyeglasses Through the Ages
It is produced and hosted as another way of expressing gratitude to those who have helped Company Seven prosper. With some of this content dating back to the times when slow dial-up Internet access was the norm, the article was originally text heavy because illustrations were by necessity kept simple and to a minimum. Over the decades we have, and will continue to, on occasion add this or that mention of or illustration of items in our archives and museum collection, this to break up the monotony of text, make corrections with much gratitude to Dr.
It was never our intent to write one comprehensive and all-encompassing history of Zeiss, that would require volumes to do it justice, but rather to explain why we at Company Seven remain grateful for and in awe of the achievements by Zeiss. From its inception through to the middle 19th century, lens making was a craft that was essentially passed on from generation to generation. Innovations had typically resulted from trial and error experimentation; this was a costly and time consuming process that could not factor in all of the possible variables in lens making materials and design.
Pencer microscope dating games made just for an antique microscope in after obstruction. Authorities in microscopes. 1, animalia or starting a collection of dating life are sometimes grouped in microscopes and marital status.
It is science, though many times confused as being the same thing. I’ll prove my point. You know that I could never have been inside of your mysterious building out there, and I imagine you can be sure no one has told me its secrets. Yet I’ll bet that I can describe fairly accurately what is in there—not from seeing the machinery, but from knowing what must be done to oil in order to get the products you need.
You want to hear? Your crude oil runs into a tank of some kind, and you pipe it from there to a retort , some big vessel that you can seal airtight. Once it is closed, you light a fire under the thing and try to get all the oil to an even temperature.
A Glossary of Ecological Terms
One advert is for a ‘brain-computer interface engineer’ to work on a ‘2-year B8 project focused on developing advanced BCI technologies. Markita Landry from UC Berkley is being fuded in her research into deep brain imaging. Manu Prakash from Stanford is developing measurement tools, such as ultra-low cost microscopes, for use in extreme resource-poor areas of the world.
Leeuwenhoek Microscope – Designed around by a Dutchman, Antony van Leeuwenhoek, the microscope was a simple single lens device completely handmade including the screws and rivets with greater clarity and magnification than compound microscopes of its time.
The 11 strong team, including management, will be integrated with the Group’s existing Eddisons property services division. CJM was established in PTFS is a financial services business specialising in the provision of mortgage and other financial services products via its network of in As part consideration for the Acquisition, Spectris plc Acquires Concept Life Sciences Spectris plc, the productivity-enhancing instrumentation and controls company, today announces that it has completed the acquisition of Concept Life Sciences from Equistone Partners Europe and company management.
Previously the device was manufactured under a licence arrangement that was scheduled to expire in The transaction is in addition to the purchase of inte
The following items can be found on the The Lanes Armoury website , with full descriptions, photographs and prices. Alexander William Kinglake was an English travel writer and historian. His very finest work is considered to be his work on Crimea and it was regarded as the most effective work of its class. A absolutely ideal addition to a library of Fine Bindings, complete with the original and amazing looking Russian Romanov ‘Tesak’ sawback sword, bearing full Russian Romanov inspection markings, TM, a date, , plus other cyrillic markings to the blade and scabbard.
It took us quite a while to trace the swords markings in our lexicon of 19th century European swords reference works.
NY Microscope Co. is a full-service microscope company. We specialize in high-quality microscopes, digital microscopes and digital cameras offered at competitive prices. We service and repair all brands of microscopes, on the field or at our in-house service center.
Light-field camera Digital methods of image capture and display processing have enabled the new technology of “light field photography” also known as synthetic aperture photography. This process allows focusing at various depths of field to be selected after the photograph has been captured. These additional vector attributes can be captured optically through the use of microlenses at each pixel point within the 2-dimensional image sensor.
Every pixel of the final image is actually a selection from each sub-array located under each microlens, as identified by a post-image capture focus algorithm. Devices other than cameras can be used to record images. Trichome of Arabidopsis thaliana seen via scanning electron microscope.
Social Science History: Society and Science History TimeLine
It is an opportunity for us to reflect on the language and ideas that represented each year. So, take a stroll down memory lane to remember all of our past Word of the Year selections. Change It wasn’t trendy , funny, nor was it coined on Twitter , but we thought change told a real story about how our users defined Unlike in , change was no longer a campaign slogan. But, the term still held a lot of weight.
IF THE AD IS UP, IT’S STILL AVAILABLE! up for sale: ao spencer 3-axis vernier adjustable microscope stage slide with wood case, used. for sale is one used american optical spencer stereo microscope with boom arm pictured above.
Ecofeminism and ecopsychology are mentioned, for example, as are terms from organic gardening and permaculture. Because the life sciences messily overlap that’s life , terms from botany, biology, geology, chemistry, meteorology, and agriculture are included as well. Although designed for technical correctness and clarity, this glossary follows the practice in the Jung and Freud glossaries at this site of letting in a bit of humor here and there: Some states in the U.
Abrasiveness also seems to be the one quality currently shared by most political appointees and prominent heads of state. Also refers to how objects convert the solar radiation they receive into heat. Acids tend to be sour and corrosive. The human stomach contains hydrochloric acid with a pH of 1; battery acid is stronger, but not by much. Most of it is generated by sulfur dioxide and nitrogen dioxide air pollution.
Its pH is less than 5. Results include fish and plant deaths, corrosion, groundwater pollution, and soil erosion. Its long-term effects are unknown. See Plate Tectonics for more about what causes accretion. The standard measure of agricultural irrigation.
Eyeglasses Through the Ages “The art of making a pair of spectacles was an achievement of monumental significance for mankind that has had an incalculable impact. Although it has been relatively unknown to the general public, the evolution and development of spectacles over the past seven centuries qualifies as a long, significant, and quite fascinating journey through history, whose impact deserves to be better recognized and more widely appreciated.
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I Saw Them Making Microscopes ( MB) note: This is a page ‘walk through’ of the AO Spencer plant in The Microscope – Construction, Use, and Care ( MB) note: This scanned booklet courtesy of Eldred Spell.
Richard Cowen’s Chapter Eight: Leaving the Water – images – curent page , , to , , years ago Eurypterids, otherwise known as sea scorpions. Wikipedia Late Ordovician survivals and extinctions: There were no land animals and extinctions were confined to water life. There were two distinct extinctions roughly a million years apart.
The first of these began about million years ago.
Scientific Collectables for antique and vintage telescopes military and marine
History of Technology Heroes and Villains – A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.
You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular.
Spencer was the first to patent this type of mechanism in the United states. The patent for the substage can be seen here. But the substage was not the only Spencer patent applicable to this microscope. On the same date a patent for the focusing mechanism, the second for .
Click Image to View Gallery Dating to the first quarter of the 19th century, circa this is a rare example of a large 5 draw mahogany barreled telescope, engraved ‘BANKS London’on the first draw. Intended for marine use, it has a mahogany barrel with five brass draw tubes, and still has its original green tint objective lens which has a visible diameter of 50mm. All lenses are free from any damage, and the image approximately 15x magnification is sharp, albeit with the distinctive green tint which was intended to reduce reflected glare from the sea.
Although a large telescope measuring 44″ mm when fully extended, 10″ closed, it is very manageable weighing only 0. Housed in a soft leather case, it’s in very good cosmetic condition all round, no splits or cracks in the mahogany barrel. The only points to note are some minor dings to the second brass draw tube, and the objective lens holder has a small dent around its rim, as does the eyepiece cup which is also missing the small pip on the internal dust slide.
These are very minor cosmetic blemishes which do not affect the performance of the scope, but I mention them for accuracy and most are visible in the larger images. Interestingly, it also carries the Broadhurst Clarkson name showing it was retailed by them at some point in the early part of the 20th century, and was probably considered an antique collectable even then!