小燕子，穿花衣。家燕的体型小巧，树麻雀和它比起来都会显得大一些。离得远，它们看起来黑黢黢的，下巴一撮儿红色很明显，离得近，在阳光的照射下，羽毛本身有色素沉淀，除此以外，羽毛的物理特质使得在一些角度看，因散射、干涉或衍射的产生出的结构色，复合呈现出五彩斑斓的蓝色。照片中可以看到羽毛部分：从结构上分类看是正羽，从功能上分类是飞羽。春季，燕子忙着筑巢抚育下一代，因此，它们会为了找寻建筑材料，多次往返很是辛苦。马上它们就要多起来了～#观鸟 #北京观鸟 #鸟类摄影 #家燕

你不知道的冷知识

小燕子，穿花衣。

家燕的体型小巧，树麻雀和它比起来都会显得大一些。

离得远，它们看起来黑黢黢的，下巴一撮儿红色很明显，离得近，在阳光的照射下，羽毛本身有色素沉淀，除此以外，羽毛的物理特质使得在一些角度看，因散射、干涉或衍射的产生出的结构色，复合呈现出五彩斑斓的蓝色。

照片中可以看到羽毛部分：从结构上分类看是正羽，从功能上分类是飞羽。

春季，燕子忙着筑巢抚育下一代，因此，它们会为了找寻建筑材料，多次往返很是辛苦。

马上它们就要多起来了～

#观鸟 #北京观鸟 #鸟类摄影 #家燕

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你不知道的冷知识 Telegram | DID YOU KNOW?

Telegram announces Anonymous Admins

The cloud-based messaging platform is also adding Anonymous Group Admins feature. As per Telegram, this feature is being introduced for safer protests. As per the Telegram blog post, users can “Toggle Remain Anonymous in Admin rights to enable Batman mode. The anonymized admin will be hidden in the list of group members, and their messages in the chat will be signed with the group name, similar to channel posts.”

That strategy is the acquisition of a value-priced company by a growth company. Using the growth company's higher-priced stock for the acquisition can produce outsized revenue and earnings growth. Even better is the use of cash, particularly in a growth period when financial aggressiveness is accepted and even positively viewed.he key public rationale behind this strategy is synergy - the 1+1=3 view. In many cases, synergy does occur and is valuable. However, in other cases, particularly as the strategy gains popularity, it doesn't. Joining two different organizations, workforces and cultures is a challenge. Simply putting two separate organizations together necessarily creates disruptions and conflicts that can undermine both operations.