Revision

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Revision episodes

  • PHYS-Expt: to measure velocity and acceleration
    Weights hanging over table edge attached to trolley, trolley travels to the right (uniform speed or acceleration), paper tape moves with same acceleration/speed, TTT puts 50 dots per second on tape, time interval between consecutive dots-0.02s, examine pattern of dots, accuracy-take several spaces in calculations (smaller % error)
    1 min
  • Physics demo expt-atmospheric pressure
    Small amount of water in metal can, boil with Bunsen burner, can fills with steam, air driven out, turn off Bunsen, put tightly fitting lid on can, steam condensed into water, partial vacuum, can crushed, outside atmospheric pressure greater than pressure inside can
    1 min
  • Black Rook in Rainy Weather-Sylvia Plath
    On the stiff twig up there
    Hunches a wet black rook
    Arranging and rearranging its feathers in the rain.
    I do not expect a miracle
    Or an accident
    To set the sight on fire
    In my eye, not seek
    Any more in the desultory weather some design,
    But let spotted leaves fall as they fall,
    Without ceremony, or portent.
    Although, I admit, I desire,
    Occasionally, some backtalk
    From the mute sky, I can't honestly complain:
    A certain minor light may still
    Leap incandescent
    Out of the kitchen table or chair
    As if a celestial burning took
    Possession of the most obtuse objects now and then ---
    Thus hallowing an interval
    Otherwise inconsequent
    By bestowing largesse, honor,
    One might say love. At any rate, I now walk
    Wary (for it could happen
    Even in this dull, ruinous landscape); sceptical,
    Yet politic; ignorant
    Of whatever angel may choose to flare
    Suddenly at my elbow. I only know that a rook
    Ordering its black feathers can so shine
    As to seize my senses, haul
    My eyelids up, and grant
    A brief respite from fear
    Of total neutrality. With luck,
    Trekking stubborn through this season
    Of fatigue, I shall
    Patch together a content
    Of sorts. Miracles occur,
    If you care to call those spasmodic
    Tricks of radiance miracles. The wait's begun again,
    The long wait for the angel.
    For that rare, random descent.
    2 min
  • Morning Song-Sylvia Plath
    Love set you going like a fat gold watch.
    The midwife slapped your footsoles, and your bald cry
    Took its place among the elements.
    Our voices echo, magnifying your arrival. New statue.
    In a drafty museum, your nakedness
    Shadows our safety. We stand round blankly as walls.
    I’m no more your mother
    Than the cloud that distills a mirror to reflect its own slow
    Effacement at the wind’s hand.
    All night your moth-breath
    Flickers among the flat pink roses. I wake to listen:
    A far sea moves in my ear.
    One cry, and I stumble from bed, cow-heavy and floral
    In my Victorian nightgown.
    Your mouth opens clean as a cat’s. The window square
    Whitens and swallows its dull stars. And now you try
    Your handful of notes;
    The clear vowels rise like balloons.
    1 min
  • Mirror-Sylvia Plath
    I am silver and exact. I have no preconceptions.
    Whatever I see I swallow immediately
    Just as it is, unmisted by love or dislike.
    I am not cruel, only truthful ‚
    The eye of a little god, four-cornered.
    Most of the time I meditate on the opposite wall.
    It is pink, with speckles. I have looked at it so long
    I think it is part of my heart. But it flickers.
    Faces and darkness separate us over and over.
    Now I am a lake. A woman bends over me,
    Searching my reaches for what she really is.
    Then she turns to those liars, the candles or the moon.
    I see her back, and reflect it faithfully.
    She rewards me with tears and an agitation of hands.
    I am important to her. She comes and goes.
    Each morning it is her face that replaces the darkness.
    In me she has drowned a young girl, and in me an old woman
    Rises toward her day after day, like a terrible fish.
    2 min
  • Elm-Sylvia Plath
    I know the bottom, she says. I know it with my great tap root:
    It is what you fear.
    I do not fear it: I have been there.
    Is it the sea you hear in me,
    Its dissatisfactions?
    Or the voice of nothing, that was your madness?
    Love is a shadow.
    How you lie and cry after it
    Listen: these are its hooves: it has gone off, like a horse.
    All night I shall gallop thus, impetuously,
    Till your head is a stone, your pillow a little turf,
    Echoing, echoing.
    Or shall I bring you the sound of poisons?
    This is rain now, this big hush.
    And this is the fruit of it: tin-white, like arsenic.
    I have suffered the atrocity of sunsets.
    Scorched to the root
    My red filaments burn and stand, a hand of wires.
    Now I break up in pieces that fly about like clubs.
    A wind of such violence
    Will tolerate no bystanding: I must shriek.
    The moon, also, is merciless: she would drag me
    Cruelly, being barren.
    Her radiance scathes me. Or perhaps I have caught her.
    I let her go. I let her go
    Diminished and flat, as after radical surgery.
    How your bad dreams possess and endow me.
    I am inhabited by a cry.
    Nightly it flaps out
    Looking, with its hooks, for something to love.
    I am terrified by this dark thing
    That sleeps in me;
    All day I feel its soft, feathery turnings, its malignity.
    Clouds pass and disperse.
    Are those the faces of love, those pale irretrievables?
    Is it for such I agitate my heart?
    I am incapable of more knowledge.
    What is this, this face
    So murderous in its strangle of branches?——
    Its snaky acids hiss.
    It petrifies the will. These are the isolate, slow faults
    That kill, that kill, that kill.
    2 min
  • Poppies in July-Sylvia Plath
    Little poppies, little hell flames,
    Do you do no harm?
    You flicker. I cannot touch you.
    I put my hands among the flames. Nothing burns
    And it exhausts me to watch you
    Flickering like that, wrinkly and clear red, like the skin of a mouth.
    A mouth just bloodied.
    Little bloody skirts!
    There are fumes I cannot touch.
    Where are your opiates, your nauseous capsules?
    If I could bleed, or sleep! -
    If my mouth could marry a hurt like that!
    Or your liquors seep to me, in this glass capsule,
    Dulling and stilling.
    But colorless. Colorless.
    1 min
  • The Arrival of the Bee Box-Sylvia Plath
    I ordered this, clean wood box
    Square as a chair and almost too heavy to lift.
    I would say it was the coffin of a midget
    Or a square baby
    Were there not such a din in it.
    The box is locked, it is dangerous.
    I have to live with it overnight
    And I can't keep away from it.
    There are no windows, so I can't see what is in there.
    There is only a little grid, no exit.
    I put my eye to the grid.
    It is dark, dark,
    With the swarmy feeling of African hands
    Minute and shrunk for export,
    Black on black, angrily clambering.
    How can I let them out?
    It is the noise that appals me most of all,
    The unintelligible syllables.
    It is like a Roman mob,
    Small, taken one by one, but my god, together!
    I lay my ear to furious Latin.
    I am not a Caesar.
    I have simply ordered a box of maniacs.
    They can be sent back.
    They can die, I need feed them nothing, I am the owner.
    I wonder how hungry they are.
    I wonder if they would forget me
    If I just undid the locks and stood back and turned into a tree.
    There is the laburnum, its blond colonnades,
    And the petticoats of the cherry.
    They might ignore me immediately
    In my moon suit and funeral veil.
    I am no source of honey
    So why should they turn on me?
    Tomorrow I will be sweet God, I will set them free.
    The box is only temporary.
    2 min
  • Child-Sylvia Plath
    Your clear eye is the one absolutely beautiful thing.
    I want to fill it with color and ducks,
    The zoo of the new
    Whose names you meditate ---
    April snowdrop, Indian pipe,
    Little
    Stalk without wrinkle,
    Pool in which images
    Should be grand and classical
    Not this troublous
    Wringing of hands, this dark
    Ceiling without a star.
    1 min

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