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Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a conventional transmission electron microscope (TEM) when viewing biological specimens such as cells ...
GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home.
In August 2018, Ofqual announced that it had intervened to adjust the GCSE Science grade boundaries for students who had taken the "higher tier" paper in its new double award science exams and performed poorly, due to an excessive number of students in danger of receiving a grade of "U" or "unclassified".
Fluorescence and confocal microscopes operating principle. Confocal microscopy, most frequently confocal laser scanning microscopy (CLSM) or laser scanning confocal microscopy (LSCM), is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole to block out-of-focus light in image formation. [1]
The evolutionary origin of birds was an open question in paleontology for over a century, but the modern scientific consensus is that birds evolved from small feathered theropods in the Jurassic. Not all dinosaur lineages were cut short at the end of the Cretaceous during the Cretaceous–Paleogene extinction event , and over 11,000 species of ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. English physicist and musician (born 1968) This article is about the English physicist often on TV. For the Scottish actor, see Brian Cox (actor). For other people with this name, see Brian Cox. Brian Cox CBE FRS Cox in 2016 Born (1968-03-03) 3 March 1968 (age 56) Oldham, England, UK ...
From lightning bolts and watt engines to electromagnetic waves and single electrons, Professor Marcus du Sautoy continues his journey into the world of measurement as he reveals how we came to measure and harness the power of heat, light and electricity.
Pointless is a British television quiz show produced by Banijay subsidiary Remarkable Entertainment for the BBC hosted by Alexander Armstrong.In each episode, four teams of two contestants attempt to find correct but obscure answers to four rounds of general knowledge questions, with the winning team eligible to compete for the show's cash jackpot.