Cryptographic attacks | Random number generation
Clock drift refers to several related phenomena where a clock does not run at exactly the same rate as a reference clock. That is, after some time the clock "drifts apart" or gradually desynchronizes from the other clock. All clocks are subject to drift, causing eventual divergence unless resynchronized. In particular, the drift of crystal-based clocks used in computers requires some synchronization mechanism for any high-speed communication. Computer clock drift can be utilized to build random number generators. These can however be exploited by timing attacks. (Wikipedia).
What Are Light Echoes? Using Reflections Of Light To See Even Further Back In Time
When we look outward into space, we’re looking backwards in time. That’s because light moves, at the speed of light. It takes time for the light to reach us. But it gets even stranger than that. Light can be absorbed, reflected, and re-emitted by gas and dust, giving us a second look. Th
From playlist Guide to Space
Watch Time Warp Wednesdays at 8 pm ET. http://dsc.discovery.com/videos/time-warp/ See the wall of a giant bubble deform, cave and eventually collapse as it is blown on in front of our high-speed camera. Catch Time Warp - Wednesdays @ 8pm E/T, only on Discovery.
From playlist Time Warp
Universe Time Lapse - Big Bang Theory
How our universe could evolve. However, this is only an artistic speculation, not a scientific simulation. http://kostackstudio.de
From playlist Artistic Works
Show Me Some Science! Speed Of Sound
Sound is a wave which travels through the air at about 330 m/s. The Little Shop of Physics Crew dances to the music together. When spread out along the track, it takes about a third of a second for the sound to travel from the first person to the last. The crew is blindfolded, so there are
From playlist Show Me Some Science!
Time Warp- Slow Motion Masters
Watch Time Warp Wednesdays at 8 pm ET. http://go.discovery.com/?mkcpgn=ytdsc1&url=http://dsc.discovery.com/videos/time-warp/ Cheerleaders, doggies and kung-fu masters... see a few of your favorite things as you've never seen them before!
From playlist Time Warp
Time Warp - Slow Mo Never Gets Old
Time Warp shows you what's REALLY going on when a face is punched or a dog drinks. Stream your favorite Discovery shows on the Discovery GO app and online: https://www.discovery.com/ Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Join us on Facebook: https://www.facebook.com/D
From playlist Time Warp
EEVblog #61 - Crystal Oscillator Drift
Dave explains the what how and why of measuring crystal clock oscillator drift over time. http://www.eevblog.com/images/ClockDriftBoards.jpg http://www.eevblog.com/images/SineFit8dayData.gif http://www.eevblog.com/images/TempRampTest.gif
From playlist Electronics Tutorials
Special Topics - GPS (57 of 100) Why Do We Need SV Clock Corrections? Part 1
Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the atomic clock on the space vehicle (satellite) tends to drift over time unlike the Earth-bound atomic clocks. So, in order to k
From playlist SPECIAL TOPICS 2 - GPS
Special Topics - GPS (43 of 100) Why Do We Need 4 Satellites?
Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn why we need 4 satellites for GPS instead of 3. Previous video in this series on YouTube: https://youtu.be/Wpvt6kX0NuQ Title: Sp
From playlist SPECIAL TOPICS 2 - GPS
0130 [ C++ ] Time tracking and diagnostics in game server cluster
This is #130 in my series of live (Twitch) coding streams. This stream I made some surprising observations on the behavior of QueryPerformanceCounter in Windows (frequency matches wall clock, somehow?) and decided to use the C++ standard library (chrono) for timekeeping, making a monoto
From playlist Excalibur
Special Topics - GPS (42 of 100) Clock Error (Bias) Revisited
Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 Before getting into the detail of how we deal with the errors in the measurements, let’s look at the clock errors that we face. Previous video
From playlist SPECIAL TOPICS 2 - GPS
GRCon19 - RF System Synchronization - LO's by Dan Baker
RF System Synchronization - LO's by Dan Baker, Brian Avenell Multi-channel applications including MIMO, phased array RADAR, and direction finding require channel-to-channel phase and time synchronization. Phase synchronization implies having deterministic relative phase between all of the
From playlist GRCon 2019
Astronomy - Ch. 5: Light & E&M Radiation (25 of 30) Doppler Shift and Celestial Movement
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Doppler shift and how it used to determine the movement of celestial objects.
From playlist ASTRONOMY 5 LIGHT AND RADIATION
Molecular evolution (2), substitution rates.
This video considers the substitution rates of new mutations. Three different models to account for observed rates are described: the neutral theory, the nearly-neutral theory, and the selectionist theory. The concept of a molecular clock is also described.
From playlist TAMU: Bio 312 - Evolution | CosmoLearning Biology
Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https://twitter.com/worldscienceu
From playlist Science Unplugged: Time
Special Topics - GPS (44 of 100) How to Find the Geometric Range? (R = True Range)
Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn how we find geometric range in GPS, the distance between the satellite and receiver. Previous video in this series on YouTube: h
From playlist THE "HOW TO" PLAYLIST
GRCon19 - RF System Synchronization - Baseband by Daniel Jepson
RF System Synchronization - Baseband by Daniel Jepson Systems are evolving: channel counts are increasing, alignment requirements are tightening, and units are now spread far afield. These systems demand higher synchronization performance, as well as ease of use and installation. This pre
From playlist GRCon 2019
NASA Jet Propulsion Laboratory Live Stream
NASA's Jet Propulsion Laboratory invites you to watch live about everything from Mars rovers to monitoring asteroids to cool cosmic discoveries. From the lab to the lecture hall, get information directly from scientists and engineers working on NASA's latest missions. http://www.jpl.nasa.g
From playlist Von Karman Public Talks