關於 beam profile ，我們在網路上蒐集到這些相關的討論、資訊與評價

號稱比Face ID更安全，用什麼假面或怎麼變臉也騙不了手機解鎖...
https://www.eettaiwan.com/news/article/20200309NT02-beam-profile-analysis-beats-facial-recognition-cheats

【只談物理】過去幾天不斷有讀者朋友詢問一個非常好的問題：「為何激光的強度遵守平方反比律？」

我本來打算直播討論一下這個問題，但仍未找到時間。先寫個簡短版本的答案：

如果整束激光真的完全以直線前進，那的確不會是平方反比。然而，激光是一束Gaussian beam，其垂直於前進方向的分布是Gaussian的。在一定距離以外（依激光儀器不同構造和使用波長有別，一般為1-3米），Gaussian profile以正比距離上升。因此，平方反比律成立。

事實上，平方反比律並不是球狀發散獨有的。平方反比律有個更深刻的原因：能量守恆。這也反映在Maxwell’s Equations中的高斯定律之中：包住電場的表面可以是任何形狀。

無論如何，即使不是激光，就算是用強光電筒照射眼睛，一樣能夠造成永久損害。大家千萬不要以肉眼直視太陽、強光電筒、激光光源。

小心為上，保持冷靜，身體健康。

🍰 A Piece of Cake: Them 👽
The day my life changed was the 3rd of August 2013. I can recall it vividly. I was hanging out with my three friends at the park. It was the late evening so there was nobody else there. We were just about to leave when we heard a rustle behind us. We all looked around, but there was nothing there. Thinking that it must have been a squirrel, we turned around and carried on walking. Then it happened. It happened so quickly but it felt like an eternity. A strange aircraft appeared in front of us. A door in the side of it opened and a wide beam of light cut through the trees. My friends were suddenly whisked off their feet and sucked into the weird metal contraption. The door shut with a loud clang. The aircraft rose up and sped away into the now purpling sky. I dropped onto my knees, my mouth open. 😱 I found it hard to come back to my senses after experiencing that. I decided not to tell anybody because they wouldn't believe me anyway. Now, I never leave the house but from my window, I can see more people becoming victims of alien abduction 👽 and I wonder why I wasn't one of them.
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✍🏻 A Short Story & Doodle by The Pawsome Lion 🦁18/04/2017 ©
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近所のプロドライバー
先日も三宅智子さん（エステシャン三宅）を
ライダーズカフェMACHから
新大阪まで
送り届けてもらいました、
http://tomokomiyake.heteml.jp/profile/index.html

Outline

Beat (BEAT) is a light car of the 2-seater of the midship engine rear drive convertible that Honda Motor Co., Ltd. announced on May 15, 1991.

In the body model, PP1 and the engine model are E07A. It has five set velocities MT installing the monocoque opening body with a high rigidity and three super-high rotation series cylinder SOHC 4Valve 656cc engine in Zain of ..excellent.. De in a horizontal putting, and extremely short the shift stroke. It is a different diameter tire, four-wheel solid disk brake, and a luxurious chassis after the first inch of the Strat type ..independence.. suspension of four wheels of. about 14 inchesThe brake disk is mainly made the rear wheel that often hangs the traction a large diameter, and, therefore, is, 1 from which the midship design of the real thing of the NSX transfer has been taken as another size tire is used for the front wheel and the rear wheel. By the way, the room mirror of the beat is equipped with quite the same one as NSX.

The installed engine generates 64 PS of a light car full self-imposed restraint by suction system MTREC(Multi Throttle Responsive Engine Control) that combines three independent ream throttle with the fuel jet control map change method by 8,100 rpm though is nature suction (NA). Red Zone is 8,500 rpm and a super-high rotation type. Moreover, there is an economy that seems to be NA, too and it is not unusual that the body that it is small and the air resistance is a little records fuel cost that exceeds 20km/L by the urban area in 12?15km/L and a long touring if it runs usually.

In the seat, the center console comes near to a passenger side by about 2cm, and the driver's seat is a design where other light sports do not feel tightness wider than the passenger's seat. From low view to one of the lowest cars it, and the one only of beat obtained speed feeling in 117cm and domestic production cars the total heightThere is no power steering because of lightness, and play is very quick 0, and it can enjoy driving the super-short stroke that can be operated only by the wrist the shift and the aspect are waited for and with a direct feeling very much the enjoyment in the steering wheel of the reception desk.

It was the first, and the domestic production car that was able to be 1G deceleration one of the cars that the brake performance is the best thanks to an appropriate weight balance. Consideration to safety was everywhere, too and the light car in four-wheel disk brake and the SRS air backing equipmentThe behavior or less at the limit waits for the adoption and the aspect, disciplines, is kicked to the understeer, and a tricky handling that seems to be the midship is suppressed to complete about the back and forth different diameter tire. Moreover, the impact beam was adopted in the door for the first time in ..lightness...

Loading is sacrificed in a multi amount and the career can be installed on the trunk food by the option though it is possible to hardly load with luggage that only the trunk of the apology extent and seems to be luggage.

Car audio (option) was unique, that it was called, "Sky sound system", responded at the speed, and the volume went up. Moreover, a part of parts supplier is putting 2DIN kit on the market though goods outside the company install and are improper in fact.

To avoid the repulsion of the Ministry of Transport at that time, midship amusement (Midship Amusement) and crown. do not introduce oneself do sportsIt is a four-wheeled vehicle that Soichiro Honda who died in August of the same year saw off at the end. It was said the trio of Heisei era ABC (..drinking.. B) by the thing called a planned light car in the bubble age. Popularity is ..passage of ten years or more.. still high from the production stoppage in the secondhand market.