Luis, who is studying for a PhD in Architecture and Interaction Design, said he is fascinated with the idea of being able to see the hidden wireless networks which surround us.

建筑与交互设计专业的博士生路易斯·赫南想出了一个让我们周围的无线网络可视化的点子，并为之着迷。

'I call the images "spectres" because wireless networks remind me of ghosts,' he said. 'They are there but you can't see them with the human eye.

他说：“我把这些图片叫做‘幽灵’，因为无线网络让我想起幽灵——它们就在那儿却不能被肉眼看见。”

'The fact we are becoming increasingly reliant on something that we can't see intrigues me. I wanted to find a way to show the wireless which is around us and also to show how it changes.

“我们越来越依赖于不可见的东西，这事儿激起了我的好奇。我想找到一种方法来显示我们身边的无线以及它的变化。”

Hernan created the photographs using a custom-made instrument designed to reveal them.

赫尔南用自制的设备将无线网络显示在相片中。

It scans continuously for wireless networks, and transforms the signal strength to colour LEDs.

这台设备不断扫描无线网络，并用彩色LED表示不同的信号强度。

The results are multi-coloured streaks of light which twirl and wrap in spaces, showing how they surround objects and people.

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