New Scientist - UK (2022-06-11)

11 June 2022 | New Scientist | 53

The back pages Puzzles

Quick quiz #155

1 What is the only known comet that can be

seen twice in one lifetime with the naked eye?

2 Which Scottish doctor pioneered the

theory that citrus fruit alleviates scurvy?

3 Where in the body would you

find a Sertoli cell?

4 Plants of the Dionaea, Sarracenia and

Nepenthes genera share which trait?

5 In zoology, which major rank in the

taxonomic hierarchy comes between

kingdom and class?

Answers on page 55

Puzzle

set by Donald Bell

#171 The magic

number bracelet

“Here’s your 21st birthday present,”

said Amy.

“A bracelet?” frowned Sam.

“Not just any bracelet, it is a magic number

bracelet because I know you love numbers.

See how it has got five beads, each with a

different positive number on it. You can find

all the numbers from 1 to 21. But to find

most of them, you have to add together

adjacent beads.”

“For example, to make the number 17 you

add together these three beads,” she said,

pointing to the beads in positions A, B and C

on the diagram. “Other numbers are found

by adding two, three or four adjacent beads.

And, of course, to get 21, you add up all five.”

What are the five numbers on Sam’s bracelet?

Solution next week

Cryptic crossword #85 Set by Wingding

Scribble

zone

Answers and

the next quick

crossword

next week

ACROSS

1 Loveliest insect evolved (6)

4 Foliage plant that’s said

to be more groovy (6)

9 Sun-kissed man’s digression (7)

10 Body fluid from a bear lacking sulphur (5)

11 Chef eating last of dinner is criminal (5)

12 Bear’s breeches obscuring

a corner of one’s eye (7)

13 Provide food and supporting

structure for larva (11)

18 Current applied to skin (7)

20 Hit that man and clean oneself (5)

22 Flatworm’s stroke of luck (5)

23 Regularly draw animal on overturned

bundle of paper (7)

24 Builds emergency room and

electroconvulsive therapy suite,

primarily (6)

25 Large country replacing leader

with strong type of ice (6)

DOWN

1 See tonic mixed with stimulant (6)

2 Company and non-profit group

somewhere in Africa (5)

3 Spot ham on the outskirts of Lille (7)

5 Sheep and seabird announced

change of policy (1-4)

6 God reincarnated in shark (7)

7 Opposed to a piece of poetry (6)

8 Collecting endless medicine in sock (11)

14 Alpha pack animal swallowed

polonium capsule (7)

15 Some ferrets boldly flipped

over crustacean (7)

16 Prevent chlamydia, perhaps,

with parasite missing tail (6)

17 Dispute over aluminium is

like medieval customs (6)

19 Climber’s beginning to take

a break at top of hill (5)

21 Precious substance made by

world-leading pharma company (5)

Our crosswords are now solvable online

newscientist.com/crosswords

A

C

B