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Showing 699 results
This video compares the language used by classical computers (0 and 1) with that used by quantum computers (qubits). Qubits can be photons, nuclei or electrons. In this video the use of electrons is explained as follows. To be able to measure something it must change and for electrons their ability to occupy...
This video explains how n-type and p-type semiconductors can be used to create a transistor.
The explanation
n-type semiconductors are made from silicon that has been doped with phosphorous. The additional electron from the P can be used to form a current. P-type semiconductors are...
This video begins by showing how Bernoulli’s law can explain wing lift. It then introduces ideas that cannot easily be explained using the law, for example, why can planes fly upside down? Why do flat winged planes fly?
Newton’s 3rd law is used to offer a different explanation, i.e., as long as air is...
This video introduces the idea of inertia by using a large globe suspended by water. It shows that acceleration requires an unbalanced force and then explains that an objects inertia is its tendency to maintain its motion unless it is acted upon by an unbalanced force.
This video models the distance between the Earth and moon using a basketball and tennis ball. It shows that often diagrams we use are not to scale and so can be misleading.
This video discusses how data is coded and stored. It takes a look at the genetic code in humans and shows how it could be stored as 1.5Gb of data.
This video shows people’s misconceptions regarding the age of the Earth. It shows how imagining the difference between a million and billion is very difficult for people to do.
The video uses an arm span to model the age of the Earth and shows how recent in the Earth’s history the evolution of more complex...
This video explains that to compute the prime factors in a 2048 number would take a classical computer years, yet the ability of a quantum computer to use superposition, which reduces the number of steps to complete a computation, makes it possible in minutes.
The explanation
The...
Mobile app development is an engaging way for students to learn programming and interface design as many do, indeed, "love their smartphone".
This complete learning package teachers the origins and development of the smartphone, helping them to appreciate the amount of technology packed into their pocket. It...
Kayleigh is an ICT specialist for RAF Whittering, she discusses her role in this video. As an ICT specialist she supports IT equipment at stations and on deployment, looks after networks, servers, hardware and software. It is an essential role, to ensure communication continues between UK and other overseas teams....
Judith is an IT architect for IBM, she discusses her role in this video. The role involves delivering an IT solution, ensuring the plan and basics are in place and coordinating teams of people to bring the work together efficiently and cost effectively. Having had a strong academic background, her father an...