Show more has a list of all recent ssl certificates which appear in the certificate transparency logs.

Epic music: playing Mega Man 2 while Bit Brigade play the soundtrack

It's Early Harvest, when farmers harvest corn and celebrate the first loaves of bread from this years harvest. It's also a good time to collect blackberries and other wild berries

TCP keep alive works by re-sending the previous ack, even though no more data has been received. There is normally no response for ack packets with no data, but for keep-alives servers respond by also re-sending the previous ack.

Europe's Galileo global positioning system had 5 days downtime earlier this month. The satellites were fine, the issue was with the support on the ground. Current status:

It's a great time to read Sustainable Energy Without The Hot Air, an easy to read book asking if/how we can stop using fossil fuels. There are great ballpark estimates, which make the huge numbers instantly understandable. Free pdf.

LightSail 2 will be unfurling its solar sail on Tuesday. The crowdfunded spacecraft plans to accelerate by reflecting sunlight off the solar sail.

Music recommendation: Ecuador by Sash! The song is just so ridiculous and awesome.

Drama as two conflicting proposals both want to use the same TCP's congestion notification flags.

Liquid chromatography in beer glass. Draw line in felt-tip 2cm from the bottom of kitchen towel. Place in 1cm deep water. Water carries felt-tip mark upwards. Chemicals have different friction from paper, so colours separate.

Did you hear about the town in Ireland whose population went up by a factor of two? It was Dublin!

h2g2bob boosted


My review of the new 4 is on :) Super happy with the review.


New version is released this Saturday. AppArmour and Wayland by default, upstart removed, Python 3.7 (which supports type annotations)

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