w**********n 发帖数: 90 | 1 我用30HZ的Nd:YAG pump你说的这些dye,一般2天后dye就统统死掉了。
。。。。。 |
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K**********n 发帖数: 1197 | 3
钻字眼不好。人脑思考时耗能接近100瓦,不靠发散脑电波自己脑豆腐就得被烤焦了。
别白痴了,玩这种转移话题的把戏。
还是说点正经的,怎么实现天线来接收30hz~30khz脑电波吧。 |
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K**********n 发帖数: 1197 | 4 考虑现在的硅片技术,可不可以把长天线盘在硅片上,然后用片外的电容来做大电容? |
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H***F 发帖数: 2501 | 5 找个麦克风就行了
考虑现在的硅片技术,可不可以把长天线盘在硅片上,然后用片外的电容来做大电容? |
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H***F 发帖数: 2501 | 7 靠,你个脑残,给你提供信息已经够意思了,也不自己查查人声音的频率,麦克风能接
收的频率。一点常识都没有,混什么EE,滚回家去别丢人现眼
想扯淡滚一边去。 |
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K**********n 发帖数: 1197 | 8 你妈逼里有麦克风,麦克风一震动你妈就叫床,你干爹就射出你了。 |
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K**********n 发帖数: 1197 | 9 考虑现在的硅片技术,可不可以把长天线盘在硅片上,然后用片外的电容来做大电容? |
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H***F 发帖数: 2501 | 10 找个麦克风就行了
考虑现在的硅片技术,可不可以把长天线盘在硅片上,然后用片外的电容来做大电容? |
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b****n 发帖数: 228 | 16 this frequency range is used by submarine comm with miles long tail antenna. |
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b****n 发帖数: 228 | 22 this frequency range is used by submarine comm with miles long tail antenna. |
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a**i 发帖数: 419 | 26 gamma射线是核反应产生的,也才10^20 ~ 10^24 Hz。
laser这种靠电子跃迁的就别想了。
在这个宇宙中还没有观察到10^30Hz这个量级的电磁波吧 |
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i****x 发帖数: 17565 | 27 其实我不特指自己的车。我坐过开过所有的手动车都这样,包括国内出租。另外我说2k
转速说的不准,其实到了2k抖动就基本消失了,1.5k以下抖动才最明显,说起频率,抖
动带来的声音听起来远高于20-30hz的听力下限,50-70hz差不多。 |
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w*******y 发帖数: 60932 | 28 3 Pack 6 Ft Gold-Plated Super High Resolution HDMI M/M Cable Version 1.4 -
NEW - Supports 4096 x 2160p - Non-Ethernet:
http://www.buy.com/prod/3pak-6-ft-gold-plated-super-high-resolu
Marketing Description Please note this cable doesn't support HDMI
Ethernet Channels, but it supports ALL other HDMI 1.4 specifications.
Brand NEW HDMI Standard version 1.4 for your HDTV or 3DTV. Please note this
cable doesnt support HDMI Ethernet Channels, but it supports all other HDMI
1.4 specifications. If yo... 阅读全帖 |
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w*******y 发帖数: 60932 | 29 wwstereo have this Klipsch Reference Series RW-10D 10 again for lowest price
ever
$199 free shipping after coupon deals. woot
remove space before woot word
Link:
https://www.wwstereo.com/website/ecommerce/productdetail.aspx?product=RW-10d
And YES I am in for one
* frequency response: 28-120Hz +/-3dB
* amplifier power: FTC Rated Power: 260 watts continuous @ <2% THD /
Dynamic Power*: 575 watts
* maximum acoustic output: 112dB @ 30Hz 1/8 space, 1m
* drive components: 10" (25.4cm) C... 阅读全帖 |
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w*******y 发帖数: 60932 | 30 Polk Audio Monitor70 Series II Floorstanding Loudspeaker (Black) Each:
http://www.newegg.com/Product/Product.aspx?Item=N82E16882290208
Model
Brand
Polk Audio
Model
Monitor70 Series II
Spec
Type
Floorstanding Speakers
Sold As
Each
Driver Units
Tweeter Complement: one 1" cloth dome
Driver Complement: four 6.5" Bi-Laminate driver
Power Rating
20-275W
Frequency Response
30Hz-25kHz
Nominal Impedance
8 Ohm
Sensitivity
90db
Connectors
Inputs: Dual (bi-amp) 5 ... 阅读全帖 |
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