Twin's paradox experiment is a meassurement of the extra dimensions.pptx
ppt on the flying jweles of nature(birds)
1.
2.
3. A warm-blooded egg-
laying vertebrate animal
distinguished by the
possession of feathers,
wings, a beak, and
typically by being able
to fly.
4.
5. PEACOCK
A peacock is the male
of a large type of bird
that nests on the
ground, with a fan of
very long and colorful
feathers. An example
of a peacock is the
large bird that spreads
its feathers in a fan,
showing its rainbow-
colored array of
feathers
6. SPARROW
The scientific name of
this bird
is Passerellidae. This
bird’s name refers to
the bird family that all
species of sparrows
belong to. Sparrows are
a small type of brown or
gray bird that look like
finches. You can
identify sparrows by the
black streaked
markings on their back,
small chubby size, and
round head. American
7. HUMMING
BIRD
The scientific name for the
hummingbird
is Trochilidae and they are
some of the smallest birds on
the planet.
Hummingbirds get their name
from sound their wings make,
which can flap up to 80 times
a second. Apart from their
small
size, one way to identify
hummingbirds is by their
bright iridescent colors on
their throat and chest.
Hummingbirds also
have long skinny beaks that
allow them to get nectar from
8. PIGEON
Columbidae is the scientific
name for birds commonly
called pigeons or doves.
There are over 310 species
of pigeons divided into 42
genera. The domestic
pigeon (Columba livia
domestica) is one of the
first types of bird that was
ever domesticated. Pigeons
are commonly found in
cities and are a medium-
sized bird weighing
between 2 and 4 lb. (900 g –
2 kg). The smallest pigeons
can be the size of a house
9. BLUE
BIRDS
Bluebird is the name
given to birds in the
genus Sialia which is a
type of thrush.
One of the distinguishing
features of bluebirds is
their blue-colored
feathers and light brown
chest. Bluebirds are one
of the most popular types
of birds that gardeners
like to attract. They love
to feed on insects and
can help control common
10. NORTHERN
CARDINAL
The northern cardinal
(scientific name: Cardinalis
cardinalis) inhabits
woodlands and gardens in
North and South America.
When you see pictures of
this bird, it is easy to see
why this bird is named
“redbird.” The male cardinal
has bright red plumage with
a black ‘mask’ around its
bill. Female cardinals are
an olive-brown color.
Cardinals used to be kept
11. AMERICA
ROBIN
The scientific name for the
American robin is Turdus
migratorius, and similar to
the bluebird, is a member
of the family Turdidae.
This songbird has a
brownish-orange breast;
however, it is a different
species of bird to the
European robin (Erithacus
rubecula). These delightful
birds are often heard
joining in the dawn chorus
especially in springtime.
American robins are
12. AMERICA
GOLDFINCH
Spinus tristis is the
scientific name for a type
of finch commonly called
the American goldfinch.
The name of this small
bird (goldfinch) is due to
its bright yellow plumage
that becomes more
vibrant during summer.
Goldfinches are a
migrating bird that
breeds in northern states
in the US and Canada.
They can fly as far south
13. WARBLER
BIRDS
There are many genera
of Aves that are classed
as warblers, all of which
are in the
order Passeriformes (per
ching birds).
The common
characteristic of these
small birds is their vocal
abilities. However,
because their
family Parulidae is so
diverse, it is extremely
difficult to identify
14. The scientific family name of
herons is Ardeidae and there
are about 64 species of these
long-legged birds.
Herons are often spotted
beside freshwater lakes or
rivers where they forage for
small amphibians,
crustaceans, and fish. Most
species of heron are generally
large birds with some species
being up to 5 ft. (1.5 m) tall.
The most common heron in
Europe is the gray heron
(Ardea cinerea) standing up
to 3 ft. (1 m) tall. In the US, the
HERONS
15. WOODPECKER
Woodpeckers are a type of
flying bird that has the
scientific name Picidae.
There are 35 genera of
woodpeckers that include
over 240 species of
woodpecker bird. The most
common type of
woodpecker has black
feathers with white
markings near the neck.
Many species of
woodpecker have a striking
red-colored crest on their
black and white striped
16. SWALLOWS
Hirundinidae is the scientific
name for small birds
commonly called swallows.
Other names for these summer
birds include martins or saw-
wings. Many species of
swallows migrate in the fall
from
northern European countries
and North America to warmer
climates. All swallow species
have slender bodies and
pointed
wings that help them dart
about the summer skies. The
most common type of swallow
is the common house martin
(Delichon urbicum). This bird
17. Swifts are another bird
commonly seen flying around
summer skies catching
insects.
Although swifts look and
behave similar to swallows,
they are completely unrelated.
Swifts belong to the
family Apodidae which makes
them a close relative to
hummingbirds, not house
martins. Swifts are the fastest
flying birds and can reach
speeds up to 105 mph (169
km/h) and cruise at 70 mph
(112 km/h)! Swifts generally
have dark-colored wings, and
SWIFTS
18. EAGLE
Eagles are one of the most
majestic and largest of the
raptor birds and are famous
for their keen eyesight and
hunting skills.
Eagles belong to the
family Accipitridae and there
are about 60 species of birds
in this family. One of the more
famous types of eagle is the
bald eagle (Haliaeetus
leucocephalus) with its dark
brown or black plumage and
brilliant white head. Another
well-known species of eagle
is the large golden eagle
(Aquila chrysaetos) with its
impressive wingspan of up to
19. SEAGULL
Seagull is the common
name for large white and
gray sea birds in the
family Laridae.
Gulls are a common sight
around coastal regions
where they feed on fish,
mice, and leftover human
food. They have large
plump white bodies, a
yellow beak, and gray
and black wings. There
are a number of species
of gulls that include
20. CUCKOO
Some of the most identifiable
bird sounds are those made
by the bird commonly called
the cuckoo.
The scientific name for the
cuckoo is Cuculidae and
these are medium-sized birds
that make a distinctive “cu-
ckoo” sound. Cuckoos are
also some of the most diverse
types of birds when it comes
to species coloring. The
common cuckoo (Cuculus
canorus) has a gray and white
striped underpart with dark
gray or black wings and a
gray head. Other species of
21. PARROT
Parrots (Psittacines) are
one of the most popular
types of tropical birds
that are kept as house
pets. Generally, parrots
are brightly-colored birds
with large hooked beaks
and long tails. Popular
types of parrots to keep
in a cage at home include
amazon parrots,
cockatoos, and
parakeets.
22. YELLOW
CANARIES
the yellow canaries
(Crithagra flaviventris)
are an excellent .
Canaries are a type of
finch and are small,
beautiful birds that sing.
However, it’s important to
know that only the males
sing and they do this to
attract females. So, if you
want to listen to
delightful bird songs, buy
a male and keep the
female out of sight. If you
keep the pair together,
23. LOVE
BIRD
When you see pictures of
two lovebirds together, it
is easy to see how they
get their name. The
appropriately named
‘lovebirds’ (Agapornis)
bond for life and
continually display
affection to each other.
They are generally green-
colored birds with red
blushing on their heads
and red or cream-colored
24. FINCH
Finches are tiny birds
and you can easily keep a
few of these low-
maintenance birds in one
cage. There are over 220
species of finches that
come in many different
colors, patterns, and
sizes. Some interesting
finch bird color
combinations are blue
and orange, red and blue,
rosy-pink and black, and
yellow and deep violet.
25. QUAIL
The common quail, or
European quail, is a small
ground-nesting game
bird in the pheasant
family Phasianidae. It is
mainly migratory,
breeding in the western
Palearctic and wintering
in Africa and southern
India. With its
characteristic call of "wet
my lips", this species of
quail is more often heard