H&N Baracuda Match 5.53 mm pellets' ballistic coefficient at 25 metres is calculated using velocity data from two chronographs, then the results are compared with previous ones from tests at 10 and 25 m, using both the HW100 and Hatsan BT65.
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Airgun Shooting and Related Activities:
https://www.facebook.com/BatSkull.ASRA
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https://www.youtube.com/watch?v=GaHWNlSJ8Go
Another simple chaotic oscillator circuit I've found on the web. There are probably hundreds of papers describing chaotic generator things using circuits like this. This one is credited to M. Fouodji Tsotdop, J. Kengne, G. Kenne, and Z. Tabekoueng Njitacke: "Coexistence of Multiple Points, Limit Cycles, and Strange Attractors in a Simple Autonomous Hyperjerk Circuit with Hyperbolic Sine Function". The circuit uses just opamps as active components, four of them as integrators in series, two as inverters inside the multiple feedback loops.
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#analogsynthesizer
#electronicmusic
#strangeattractor
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https://www.youtube.com/watch?v=GVNFriJVXbE
(abaixo da descrição estão os links dos atiradores do Esquadrão Classe A).
Vídeo do 1º desafio do mês de Novembro - Esquadrão Classe A.
3 pedaços de giz em 3 posições diferentes: diagonal para esquerda, vertical, e horizontal com a base para frente. Seis chances de disparo.
Arma: Hatsan BT65 SB Elite .22 PCP
Munição: H&N Baracuda 1,37g (21.14 grains)
Mira: Nikko Stirling Gold Crown Air King 4x32
Posição: Benchrest
Distância: 30m (32.8 yards)
Esquadrão Classe A:
Coxa Sniper
https://www.youtube.com/channel/UCI8rPQ-kXffJPaR3WAGTgJg
Exterminador de Palitos:
https://www.youtube.com/channel/UCjrgP0R64M2q7D1fysNxqqQ
Mestre Rogério:
https://www.youtube.com/channel/UCHgRYwsMqNsjTsCjZio9nrQ
Fred Sniper:
https://www.youtube.com/channel/UCgpZIDEU4bd1Uc--hcO6Ptw
Turco Atirador:
https://www.youtube.com/channel/UCZqysxxOwZQqtgXAi-6z39g
Alex Long Range:
https://www.youtube.com/channel/UCapkh6_QRaG9jUJuaYbtQwg
Sniper de Colinas:
https://www.youtube.com/channel/UChKvGlB69kH854IhFUv_08Q
Zé Bom de Gatilho:
https://www.youtube.com/channel/UCMIzquXayCNqRaqYOPMR7Sw
Val Alvo Certo
https://www.youtube.com/channel/UC1aGoM0amTSeCMbCkGjtqAw
Quase Acerta:
https://www.youtube.com/channel/UCU7U__NG6JrN3SM6oEBxGOQ
Sniper Elite
https://www.youtube.com/channel/UCjWA59NStvibYghTvzhpkZA
Atirador Rodrigues
https://www.youtube.com/channel/UClQdqp2eOhXJXnVishj5b6g
Guerreiro Amazônida
https://www.youtube.com/channel/UCixZZN31dG7UpOJNOnmaZpQ
Sniper Montanhista
https://www.youtube.com/channel/UCXnb8hqzd8APFzS2M5cToLg
Crânio do Morcego
https://www.youtube.com/channel/UCQxQy-Z7SF7LFKsvSpqrTXg
Strongyloide BDG
https://www.youtube.com/channel/UCheKb0Z5DS2hg_VfLrVavNg
Rodolpho Pinheiro
https://www.youtube.com/user/rhbpinheiro
Vitor Alves
https://www.youtube.com/channel/UC6fqHXXNrwDowQI16Xh2k5Q
Marcos Shooter
https://www.youtube.com/channel/UCrFM9EXn6tRTZxLvxhd1uuA
Maycon Meneses
https://www.youtube.com/channel/UCdzxjlJs-sellx-GUPw5HMw
Eron Lima
https://www.youtube.com/channel/UCyAVZG88AXykNJN-EKmjQCQ
esporte e lazer armas de pressão
https://www.youtube.com/user/ERNANDESAK47
Carlinhos Bao de mira
https://www.youtube.com/channel/UC3G6reiicvh16E1BlmvSdXw
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https://www.youtube.com/watch?v=--EcmHhiLeY
Yamaha TX81Z panel switches board.
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https://www.youtube.com/watch?v=cSxy1ScOdl8
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Homemade Slug 01 Wastage Session - Hatsan BT65
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Airgun Shooting and Related Activities on Facebook:
https://www.facebook.com/BatSkull.ASRA
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https://www.youtube.com/watch?v=V8Uvcg-1I-w
Simple Audio Input Attenuator Buffer for Arduino Analog Inputs, allowing Line Level audio signals to enter the Arduino ADCs without damaging it.
10Vpp signals are attenuated to 5Vpp (0 to +5V range) without distortion, signals above 10Vpp are clipped and remain in the safe range. The circuit employs a NPN transistor connected as an AC coupled buffer, using bias resistors to form an attenuator.
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https://www.youtube.com/watch?v=N-8noJHBJrU
An octave divider implemented with CD4013 CMOS flip-flop divides the input signal frequency by two and by four (one and two octaves down). Being a logic device, the outputs of the flip-flop are square waves. Two dual opamps are employed to provide input and output buffer and to transform the input signal into square waves. The circuit is very simple and works well with symmetric periodic signals. Tests with static sine wave, and with triangle wave from the Guitar Tracker Synthesizer.
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https://www.youtube.com/watch?v=tiVdMpxkjZM
Ancient Technology - Japanese Cutting Tool from the 1970's.
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https://www.youtube.com/watch?v=gLxt4ysK-2o