Secret weapon on world war tank?

Grayscale photo of a Sherman tank crossing bridge, there is peculiar equipment which protruding from the turret. It looks like radar of some kind. Who can spot the catch here?

南洋廋词 – 蛇蝎

夫人张嘴两头尖,
不做蛇来不为蝎,
日没可望它踪影,
东方日出它不见。

-- 现象

Previous riddle of the lamp, (Link)

Some bothers, others ignorance

I wrote an original Chinese riddle some time back which one young man, I assume, manage to see through it. I am quite impressed. If you read this, I will come out with more.

Riddle of the lamp 5 – A World without them

My Chinese word riddle, guess it and email to me.

A World without them

Riddle of the Lamp - Fervent Hope

百善缺一念，大道唯两点，
人逢皆同步，万众求此缘。

――猜成语。








Previous Riddle:
Riddle of the Lamp - 目空一切
Riddle of the Lamp 2 - My cup
Riddle of the Lamp 3 - The World a stage

Riddle of the Lamp 3 - The World a stage

自编灯谜，博君一笑。


吾先祖的植栽。
历风雨，度寒冬，盼满园盈盈，获一片枯黄。

－－－汉字。






Previous Riddle 1 and Riddle 2.

Riddle of the Lamp 2 - My cup

自编灯谜，博君一笑。
始为俑者，非人之所能行。披荆斩棘，饱经风霜，心碎几多年。－－汉字。

If you know the answer, I will send you a picture related to this Chinese word.

Hint: I am not a Pegan.

Previous riddle of the lamp: 目空一切

Riddle of the Lamp - 目空一切

自编灯谜，博君一笑。

自大狂妄者，心中一点虚。
不能耐且不可当也！

―――猜一汉字。



If you know the answer, I will send you a picture related to this Chinese word.

Hint: Read at the photo.