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BBC Royal Institution Christmas Lectures - Sparks Will Fly (2014) [Repost]

Posted By: Tutorial

Date: 28 Jul 2016 19:35:03

BBC Royal Institution Christmas Lectures - Sparks Will Fly (2014) [Repost]

Professor Danielle George takes three great British inventions - the light bulb, the telephone and the motor - and shows you how to hack, adapt and transform them to do extraordinary things. This year's Royal Institution Christmas Lectures have been inspired by the great inventors and the thousands of people playing with technology at their kitchen tables or tinkering in their garden sheds.

Part 1: The Light Bulb Moment
When Joseph Swan demonstrated the first working light bulb in 1878 he could never have dreamed that in 2014 we'd be surrounded by super-bright LED screens and lights that could be controlled using mobile phones. In this lecture, Danielle explains how these technologies work and show how they can be adapted to help you realise your own light bulb moments. She shows how to send wireless messages using a barbecue, control a firework display with your laptop and use a torch to browse the internet.

Part 2: Making Contact
When Scottish inventor Alexander Graham Bell demonstrated the first telephone in 1876, he could never have dreamed that in 2014 we'd all be carrying wire-free phones in our pockets and be able to video chat in crystal clear HD across the world. In this lecture, Danielle explains how these technologies work and shows how they can be adapted to help keep you connected to the people around you. She shows how to control paintball guns with a webcam and turn your smartphone into a microscope, whilst also investigating a device that allows you to feel invisible objects in mid-air.

Part 3: A New Revolution
When Michael Faraday demonstrated the first electric motor in 1822, he could never have dreamed that in 2014 we'd be surrounded by mechanical devices capable of performing nearly every human task. In this lecture, Danielle explains how these robotic and motor-driven appliances work and shows how they can adapted to help you kick-start a technological revolution. She shows how to turn a washing machine into a wind turbine, how Lego can solve a Rubik's Cube and how the next Mars rover will traverse an alien world.

MediaInfo

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Date: Wed, 27 Jul 2016 10:21:12 +0300
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[ Magic ]

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[ Generic infos ]

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Container: matroska
Production date: Wed, 31 Dec 2014 22:15:05 +0300
Total tracks: 3
Track nr. 1: video (V_MPEG4/ISO/AVC) {eng}
Track nr. 2: audio (A_AAC) {eng}
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Writing application: mkvmerge v7.4.0 ('Circles') 32bit built on Dec 12 2014 12:10:09

[ Relevant data ]

Resolution: 1280 x 720
Width: multiple of 32
Height: multiple of 16
Average DRF: 21.346615
Standard deviation: 3.387775
Std. dev. weighted mean: 2.823937

[ Video track ]

Codec ID: V_MPEG4/ISO/AVC
Resolution: 1280 x 720
Frame aspect ratio: 16:9 = 1.777778
Pixel aspect ratio: 1:1 = 1
Display aspect ratio: 16:9 = 1.777778
Framerate: 25 fps
Stream size: 1,263,907,236 bytes (1205.355869 MiB)
Duration (bs): 00:58:45 (3524.6 s)
Bitrate (bs): 2868.767488 kbps
Qf: 0.124512

[ Audio track ]

Codec ID: A_AAC
Sampling frequency: 48000 Hz
Channels: 2
Stream size: 58,605,702 bytes (55.890753 MiB)
Bitstream type (bs): AAC LC (Low Complexity)
Frames (bs): 165,215
Duration (bs): 00:58:45 (3524.586667 s)
Chunk-aligned (bs): Yes
Bitrate (bs): 133.021446 kbps VBR
Sampling frequency (bs): 48000 Hz
Mode (bs): 2: front-left, front-right

[ Video bitstream ]

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User data: x264 | core 144 r2525 40bb568 | H.264/MPEG-4 AVC codec
User data: Copyleft 2003-2014 || cabac=1
User data: ref=6 | deblock=1:0:0 | analyse=0x3:0x113 | me=umh | subme=9 | psy=1
User data: psy_rd=1.00:0.00 | mixed_ref=1 | me_range=24 | chroma_me=1
User data: trellis=1 | 8x8dct=1 | cqm=0 | deadzone=21,11 | fast_pskip=0
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PPS id: 0 (SPS: 0)
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Weighted prediction: P slices - explicit weighted prediction
Weighted bipred idc: B slices - implicit weighted prediction
8x8dct: Yes
Total frames: 88,115
Drop/delay frames: 0
Corrupt frames: 0

P-slices: 29817 ( 33.839 %) #######
B-slices: 57545 ( 65.307 %) #############
I-slices: 753 ( 0.855 %)
SP-slices: 0 ( 0.000 %)
SI-slices: 0 ( 0.000 %)

[ DRF analysis ]

average DRF: 21.346615
standard deviation: 3.387775
max DRF: 31

DRF<6: 0 ( 0.000 %)
DRF=6: 1 ( 0.001 %)
DRF=7: 2 ( 0.002 %)
DRF=8: 11 ( 0.012 %)
DRF=9: 28 ( 0.032 %)
DRF=10: 45 ( 0.051 %)
DRF=11: 82 ( 0.093 %)
DRF=12: 172 ( 0.195 %)
DRF=13: 439 ( 0.498 %)
DRF=14: 950 ( 1.078 %)
DRF=15: 1898 ( 2.154 %)
DRF=16: 3538 ( 4.015 %) #
DRF=17: 5114 ( 5.804 %) #
DRF=18: 6163 ( 6.994 %) #
DRF=19: 7795 ( 8.846 %) ##
DRF=20: 9359 ( 10.621 %) ##
DRF=21: 9249 ( 10.497 %) ##
DRF=22: 9792 ( 11.113 %) ##
DRF=23: 8932 ( 10.137 %) ##
DRF=24: 7633 ( 8.663 %) ##
DRF=25: 6226 ( 7.066 %) #
DRF=26: 5415 ( 6.145 %) #
DRF=27: 3117 ( 3.537 %) #
DRF=28: 1565 ( 1.776 %)
DRF=29: 460 ( 0.522 %)
DRF=30: 100 ( 0.113 %)
DRF=31: 29 ( 0.033 %)
DRF>31: 0 ( 0.000 %)

P-slices average DRF: 18.861723
P-slices std. deviation: 3.004323
P-slices max DRF: 30

B-slices average DRF: 22.698028
B-slices std. deviation: 2.730517
B-slices max DRF: 31

I-slices average DRF: 16.466135
I-slices std. deviation: 2.820289
I-slices max DRF: 27

[ Profile compliancy ]

Selected profile: MTK PAL 6000
Resolution: 1280 x 720 > 720 x 576
Framerate: Ok
Buffer underflow: 00:38:38 (frame 57949)

This report was created by AVInaptic (18-12-2011) on 28-07-2016 22:25:44

Screenshots