en un segundo

= in the blink of an eye, in the twinkling of an eye, in a snap, with the tip of a hat, in a jiffy, in a heartbeat, in a second

Ex. Society has moved from micro to macro scale in almost the blink of an eye.

Ex. You can send an email message from Boston to Addis Ababa in a twinkling of an eye, but that message may be expunged in a second twinkling.

Ex. Firefox installs in a snap, and it's free.

Ex. These people have absolutely no scruples, commiting genocide with the tip of a hat.

Ex. The article is entitled 'Chemistry in a Jiffy'.

Ex. Life is too short, and it can be over in a heartbeat.

Ex. A potato can be peeled in a second by steaming first for an hour before dipping it in ice water.

* * *

= in the blink of an eye, in the twinkling of an eye, in a snap, with the tip of a hat, in a jiffy, in a heartbeat, in a second

Ex: Society has moved from micro to macro scale in almost the blink of an eye.

Ex: You can send an email message from Boston to Addis Ababa in a twinkling of an eye, but that message may be expunged in a second twinkling.

Ex: Firefox installs in a snap, and it's free.

Ex: These people have absolutely no scruples, commiting genocide with the tip of a hat.

Ex: The article is entitled 'Chemistry in a Jiffy'.

Ex: Life is too short, and it can be over in a heartbeat.

Ex: A potato can be peeled in a second by steaming first for an hour before dipping it in ice water.