PBS
The Leap Second Explained
Everyone's heard of leap years ... but what about leap seconds? Young scientists get acquainted with one of humankind's most awkward standard measurements with a short video from a PBS playlist covering space and time...
PBS
When Time Breaks Down
Some define time by motion, but how exactly does this work? Space Time added a video as part of its The Origin of Matter and Time playlist to explore just this question. It breaks down the relationships between matter, motion, and time....
PBS
When Insects First Flew
Insects developed wings and the ability to fly earlier than any other animal—when exactly did that happen? Scientists know this fact but struggle to explain when insect wings developed and how this entirely new structure appeared. PBS...
CK-12 Foundation
Ck 12: Elem Math: Overview of Analog and Digital Clocks
[Free Registration/Login may be required to access all resource tools.] Video explains the difference between analog and digital time and how to convert from digital to analog, paying close attention to where to place the hour hand based...
CK-12 Foundation
Ck 12: Elem Math: Matching the Analog and Digital Clocks
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to match times on analog and digital clocks to the hour and half-hour. Includes video demonstrating a sample problem...
Open Ed
Open Ed: Tu Hs Physics Ttsd: Storing Information: Digital vs Analog
Find out the advantages of storing information digitally as opposed to storing information in an analog or more mechanical fashion. [3:30]
Khan Academy
Khan Academy: Electrical Engineering: What Is Inside an Alarm Clock Radio?
In this video we explore what is inside an alarm clock, how it is made, and how it works. [13:54]
PBS
Pbs Learning Media: Experimenting With a Lemon Battery
Can a fresh lemon power a digital clock? In this video segment adapted from ZOOM, the cast shows you how this can be done and, in the process, discover how kids can be a part of an electric circuit. [5:05]
Khan Academy
Khan Academy: Electrical Engineering: Signals and Systems
Signals and Systems covers analog and digital signal processing, ideas at the heart of modern communication and measurement. We present the basic concepts for continuous-time and discrete-time signals in the time and frequency domains....
CK-12 Foundation
Ck 12: Elem Math: Overview of Telling Time to 1 Minute Intervals
[Free Registration/Login may be required to access all resource tools.] The video explains how to tell time on a clock to the single minute and write the time in digits.
Sophia Learning
Sophia: Significant Figures in a Measurement: Lesson 3
This lesson will demonstrate how to determine the correct number of significant figures in a measurement (both analog and digital). It is 3 of 3 in the series titled "Significant Figures in a Measurement."
Sophia Learning
Sophia: Significant Figures in a Measurement: Lesson 1
This lesson will demonstrate how to determine the correct number of significant figures in a measurement (both analog and digital). It is 1 of 3 in the series titled "Significant Figures in a Measurement."
Khan Academy
Khan Academy: Bit Zee Bot: 1. Bit Zee
Bit-zee is a project designed to inspire students to explore math and science. It was created from everyday items (a hair dryer, tap light, alarm clock, digital camera, and a universal remote). See the following link for help with the...
Khan Academy
Khan Academy: Bit Zeeeeeeeeeee
Bit-zee is a project designed to inspire students to explore math and science. It was created from everyday items (a hair dryer, tap light, alarm clock, digital camera, and a universal remote). [1:11] See the following link for help with...
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