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MRI
MRI machines are now commonly used in hospitals to build amazing images of inside our bodies. Discover how magnets allow them to do this. Physics - Electricity And Circuits - Learning Points. MRI machines use magnets to take images of...
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Average Joe
Meet the average American citizen – and discover why working out averages can result in some distinctly unusual outcomes. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the curriculum....
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The Odds Are Against You
Find out how bookmakers weight the odds in their favour to ensure they nearly always win. And why gamblers are near certain to lose. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the...
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What is Sound?
Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different? Physics - Waves - Learning Points. Sound is a vibration passed to and fro along particles forming a wave. It can...
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Doppler Shift: Sound Discovery
How a unique but simple experiment in the 19th century gave a new insight into the behaviour of sound waves. Physics - Waves - Learning Points. The Doppler Effect is when the pitch of a sound seems to change as it moves past. The...
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Rubens' Tube
We create a Rubens\u2019 Tube to demonstrate the movement of sound waves. A tube lined with holes is filled with propane and connected to a speaker. We light the gas coming from the holes and play different frequencies and volumes of...
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Measuring Music
We use a sounding board called a sonometer to investigate how the pitch of sound changes when the length of wire being plucked changes. We change the position of a moveable bridge to change the length of the wire and discover that...
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Dancing Polymer
We create a polymer using cornflour and water called oobleck. Oobleck is a non-Newtonian liquid that behaves like a solid and a liquid. When placed on a speaker, the vibrations cause the polymer to constantly change its behaviour and it...
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Collision Theory
Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated? Chemistry - ReactionsLearning Points. New substances are made when particles...
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What Do Sine Waves Sound Like?
Hear sine waves as sound, and discover the equations that describe them: and the effect of increasing or decreasing the variables of amplitude and frequency. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by...
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Modulation
A term used in physics and electronics, modulation means changing some aspect of a periodic phenomenon, generally the frequency, amplitude, or phase of a waveform. A Twig Science Glossary Film. Key scientific terms defined in just 60...
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Ultrasound - High-Frequency Sound
Sound with a frequency above the normal range of human hearing, or 20,000 hertz. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Changing pitch – Did you know?
Did you know that a person singing at the right frequency at a high volume can cause a glass to shatter? Physical processes - Sound - Changing pitch Learning Points At certain frequencies sound waves can shatter glass. A Twig Tidbit Film...
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Tuning an orchestra
Find out how musicians tune their instruments. Physical processes - Sound - Changing pitch Learning Points Pitch depends on the frequency of sound waves – the number of waves per second. Low-pitched sounds have fewer waves per second...
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Infrasound - Low-Pitch Sounds
Find out about infrasounds – sounds that are too low-pitched to be heard by humans. Physical processes -Sound - Changing pitch Learning Points Infrasounds are too low-pitched for humans to hear. Low-pitched sounds have fewer waves per...
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How do sounds travel?
Find out that sound waves always need a medium to travel through. Physical processes - Sound - How does sound travel? Learning Points Sound waves are known as compression waves. Sound waves travel at different speeds depending on the...
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Ultrasound - Dolphin Communication
Learn how dolphins use ultrasound to communicate. Physical processes -Sound - How do we hear? Learning Points Sound travels faster in water than in air. Ultrasounds are too high pitched for humans to hear. Dolphins communicate using...
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Statistics: Collecting Descriptive Statistic Data
By the end of this learning object, the student will be able to: Put descriptive data in a tally frequency table.4586
Wonderscape
Exploring Characteristics of Sound Waves
Discover the characteristics of sound waves, including wavelength, frequency, and pitch. Learn about the Doppler effect and its impact on sound perception. Explore how acoustics influence building design and sound control. Sound part 3
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The CISO Masterclass - Why Do We Need a Cybersecurity Strategy
In this video, you will understand the importance of having a well-defined cybersecurity strategy and how it aligns with organizational goals and risk mitigation.
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The CISO Masterclass - Part 3 - Technology
This video delves into the crucial role of technology in a CISO's responsibilities and how to effectively leverage it for cybersecurity.
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Deep Learning - Recurrent Neural Networks with TensorFlow - A More Challenging Sequence
In this video, you will learn how to preform time series prediction with a complex signal. This clip is from the chapter "Recurrent Neural Networks (RNNs), Time Series, and Sequence Data" of the series "Deep Learning - Recurrent Neural...
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Exploring Human Hearing: From Basic Mechanics to Complex Perceptions
Dive into the intricacies of how we hear, from the journey of sound waves through the ear to the brain's ability to isolate and enhance conversations in noisy environments. Witness the fascinating tests conducted on diverse age groups to...
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Recommender Systems Complete Course Beginner to Advanced - Project Amazon Product Recommendation System: Train and Validation
After entirely developing our recommender system, we will perform the training and validation, fitting and evaluating our model.