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[[Category:Popular Science|*]]

[[Category:New Reviews|Popular Science]]__NOTOC__ <!-- Remove -->

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===[[Emily's Numbers by Joss Langford]]===

Emily found words ''useful'', but counting was what she loved best. Obviously you can count anything and there's no limit to how far you can go, but then Emily moved a step further and began counting in twos. She knew all about odd and even numbers. Then she began counting in threes: half of the list were even numbers, but the other half were odd and it was this list of odd numbers which occured when you counted in threes which she called ''threeven''. (Actually, this confused me a little bit at first as they're a subset of the odd numbers but sound as though they ought to be a subset of the even numbers, but it all worked out well when I really thought about it.) of review [[Emily's Numbers by Joss Langford|Full Review]]

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===[[Blue Planet II by James Honeyborne and Mark Brownlow]]===

You may well remember when the sticking of a number '2' after a film title was suggesting something of prestige - that the first film had been so good it was fully justified to have something more. That has hardly been proven correct, but it has until recently almost been confined to cinema - you barely got a TV series worthy of a numbered sequel, and never in the world of non-fiction. If someone has made a nature series about, say, Alaska (and boy aren't there are a lot of those these days) and wants to make another, why she just makes another - nothing would justify the numeral. But some nature programmes do have the prestige, the energy and the heft to demand follow ups. And after five years in the making, the BBC's Blue Planet series has delivered a second helping. [[Blue Planet II by James Honeyborne and Mark Brownlow|Full Review]]

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===[[Ad Astra: An illustrated guide to leaving the planet by Dallas Campbell]]===

So… you want to leave the planet? Before you do you'd better study the whole history of human space flight to get up to speed. That could take a while… if only there was a handy guide that could condense it all down for you. Enter Dallas Campbell with this book: An illustrated guide to leaving the planet. [[Ad Astra: An illustrated guide to leaving the planet by Dallas Campbell|Full Review]]

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===[[Sock (Object Lessons) by Kim Adrian]]===

The subject of this book has been around for several millennia, and yet my partner's daughter has been employed for several years designing it, or them. It's something I use for about 200 days of every year, at a guess (well, I have my self-diagnosed over-active eccrine glands and other people to think about) – which clearly puts me at the opposite end of the scale to well-known mass-murderer of women, Ted Bundy, who was into stealing credit cards to fund his desire of having a fresh pair every single day. On which subject, the amount of them we create every year could stack to the freaking moon and more. Some idiots buy more than six pairs a year, apparently, which is plain stupid. I'm talking, as you can tell, of the humble sock. [[Sock (Object Lessons) by Kim Adrian|Full Review]]

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===[[Eye Chart (Object Lessons) by William Germano]]===

It's happened to me, and like as not it has or will happen to you, too. I mean the receipt of certain little numerical results, with a positive or negative before them to prove the correction needed to my vision to make me see with the intended clarity and normality. I've had that gizmo that photos the back of my eye to check for diabetes and other problems, I've had different tests to check the pressure inside my eye, and I've come away with glasses I don't need to wear all the time, but certainly benefit from on holiday, or when watching TV or a cinema or theatre production. And above and beyond that I've stared at – and got wrong – the simple, seemingly ageless test, of various letters in various configurations that diminish in size, to prove to the relevant scientist at what stage things get blurry for me. Of course it's not ageless, but the scientific progress that led to it, the changes other people made to it, and the cultural impact it's had are all on these eye-opening small pages. [[Eye Chart (Object Lessons) by William Germano|Full Review]]

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